840

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 6 (4 unique) factors are:
2³ = 8
3
5
7

Its 32 divisors are:
1
2
3
4
5
6
7
8
10
12
14
15
20
21
24
28
30
35
40
42
56
60
70
84
105
120
140
168
210
280
420
840
Its aliquote sum is:
2040
makeing it a abundant number.

As Unicode codepoint (since version 3.0) this number represents this character:͈ COMBINING DOUBLE VERTICAL LINE BELOW in Diacriticals (Source: https://ucdapi.org/unicode/latest/codepoint/dec/840); HTML: ͈

In the work of Johann Sebastian Bach BWV 840 is Courante in G

The number appears at position 2364 of the decimal digits of π surrounded by
6160894416948685558484063534220722258284886 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 893.563ms; cpu: 92.4840000000025ms)