40156856 has 16 divisors (see below), whose sum is σ = 79723440. Its totient is φ = 18897280.

The previous prime is 40156817. The next prime is 40156903. The reversal of 40156856 is 65865104.

It is a happy number.

It is a super-2 number, since 2×40156856² = 3225146167609472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147500 + ... + 147771.

It is an arithmetic number, because the mean of its divisors is an integer number (4982715).

Almost surely, 2^40156856 is an apocalyptic number.

It is an amenable number.

40156856 is a deficient number, since it is larger than the sum of its proper divisors (39566584).

40156856 is a wasteful number, since it uses less digits than its factorization.

40156856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295294 (or 295290 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 40156856 is about 6336.9437428464. The cubic root of 40156856 is about 342.4416395847.

The spelling of 40156856 in words is "forty million, one hundred fifty-six thousand, eight hundred fifty-six".