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2240856 = 233231123
BaseRepresentation
bin1000100011000101011000
311012211212200
420203011120
51033201411
6120010200
725022052
oct10430530
94184780
102240856
1112a0652
12900960
13605c67
144248d2
152e3e56
hex223158

2240856 has 24 divisors (see below), whose sum is σ = 6069180. Its totient is φ = 746928.

The previous prime is 2240851. The next prime is 2240857. The reversal of 2240856 is 6580422.

2240856 is nontrivially palindromic in base 7.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×22408562 = 10042871225472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15490 + ... + 15633.

22240856 is an apocalyptic number.

It is an amenable number.

2240856 is an abundant number, since it is smaller than the sum of its proper divisors (3828324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2240856 is a wasteful number, since it uses less digits than its factorization.

2240856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31135 (or 31128 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2240856 is about 1496.9488969233. The cubic root of 2240856 is about 130.8593171466.

The spelling of 2240856 in words is "two million, two hundred forty thousand, eight hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 31123 62246 93369 124492 186738 248984 280107 373476 560214 746952 1120428 2240856