40856388 has 24 divisors (see below), whose sum is σ = 98407680. Its totient is φ = 13179360.

The previous prime is 40856371. The next prime is 40856449. The reversal of 40856388 is 88365804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54543 + ... + 55286.

It is an arithmetic number, because the mean of its divisors is an integer number (4100320).

Almost surely, 2^40856388 is an apocalyptic number.

It is an amenable number.

40856388 is an abundant number, since it is smaller than the sum of its proper divisors (57551292).

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

40856388 is a wasteful number, since it uses less digits than its factorization.

40856388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109867 (or 109865 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 40856388 is about 6391.9001869554. The cubic root of 40856388 is about 344.4186470524.

The spelling of 40856388 in words is "forty million, eight hundred fifty-six thousand, three hundred eighty-eight".