40557992 has 16 divisors (see below), whose sum is σ = 77664960. Its totient is φ = 19847344.

The previous prime is 40557983. The next prime is 40558009. The reversal of 40557992 is 29975504.

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, 53558 + ... + 54309.

It is an arithmetic number, because the mean of its divisors is an integer number (4854060).

Almost surely, 2^40557992 is an apocalyptic number.

It is an amenable number.

40557992 is a deficient number, since it is larger than the sum of its proper divisors (37106968).

40557992 is a wasteful number, since it uses less digits than its factorization.

40557992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107920 (or 107916 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 40557992 is about 6368.5156826375. The cubic root of 40557992 is about 343.5781063667.

The spelling of 40557992 in words is "forty million, five hundred fifty-seven thousand, nine hundred ninety-two".