40597690 has 16 divisors (see below), whose sum is σ = 83515392. Its totient is φ = 13919184.

The previous prime is 40597679. The next prime is 40597721. The reversal of 40597690 is 9679504.

It is a super-2 number, since 2×40597690² = 3296344866672200, 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, 289914 + ... + 290053.

It is an arithmetic number, because the mean of its divisors is an integer number (5219712).

Almost surely, 2^40597690 is an apocalyptic number.

40597690 is an abundant number, since it is smaller than the sum of its proper divisors (42917702).

40597690 is a wasteful number, since it uses less digits than its factorization.

40597690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579981.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 40597690 is about 6371.6316591592. The cubic root of 40597690 is about 343.6901674375.

The spelling of 40597690 in words is "forty million, five hundred ninety-seven thousand, six hundred ninety".