40057188 has 24 divisors (see below), whose sum is σ = 95231808. Its totient is φ = 13100256.

The previous prime is 40057183. The next prime is 40057189. The reversal of 40057188 is 88175004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40057181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30856 + ... + 32127.

It is an arithmetic number, because the mean of its divisors is an integer number (3967992).

Almost surely, 2^40057188 is an apocalyptic number.

It is an amenable number.

40057188 is an abundant number, since it is smaller than the sum of its proper divisors (55174620).

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

40057188 is a wasteful number, since it uses less digits than its factorization.

40057188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63043 (or 63041 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 40057188 is about 6329.0748139045. The cubic root of 40057188 is about 342.1580952319.

The spelling of 40057188 in words is "forty million, fifty-seven thousand, one hundred eighty-eight".