40157090 has 16 divisors (see below), whose sum is σ = 74615040. Its totient is φ = 15544560.

The previous prime is 40157087. The next prime is 40157113. The reversal of 40157090 is 9075104.

It is a super-2 number, since 2×40157090² = 3225183754536200, which contains 22 as substring.

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, 64460 + ... + 65079.

It is an arithmetic number, because the mean of its divisors is an integer number (4663440).

Almost surely, 2^40157090 is an apocalyptic number.

40157090 is a deficient number, since it is larger than the sum of its proper divisors (34457950).

40157090 is a wasteful number, since it uses less digits than its factorization.

40157090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129577.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 40157090 is about 6336.9622059785. The cubic root of 40157090 is about 342.4423047363.

The spelling of 40157090 in words is "forty million, one hundred fifty-seven thousand, ninety".