40573918 has 32 divisors (see below), whose sum is σ = 76174848. Its totient is φ = 15746400.

The previous prime is 40573903. The next prime is 40573919. The reversal of 40573918 is 81937504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40573919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74728 + ... + 75268.

It is an arithmetic number, because the mean of its divisors is an integer number (2380464).

Almost surely, 2^40573918 is an apocalyptic number.

40573918 is a deficient number, since it is larger than the sum of its proper divisors (35600930).

40573918 is a wasteful number, since it uses less digits than its factorization.

40573918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 40573918 is about 6369.7659297654. The cubic root of 40573918 is about 343.6230716834.

The spelling of 40573918 in words is "forty million, five hundred seventy-three thousand, nine hundred eighteen".