40290718 has 32 divisors (see below), whose sum is σ = 67001760. Its totient is φ = 18057600.

The previous prime is 40290707. The next prime is 40290721. The reversal of 40290718 is 81709204.

It is a self number, because there is not a number n which added to its sum of digits gives 40290718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175828 + ... + 176056.

It is an arithmetic number, because the mean of its divisors is an integer number (2093805).

Almost surely, 2^40290718 is an apocalyptic number.

40290718 is a deficient number, since it is larger than the sum of its proper divisors (26711042).

40290718 is a wasteful number, since it uses less digits than its factorization.

40290718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 40290718 is about 6347.4969870020. The cubic root of 40290718 is about 342.8217247970.

The spelling of 40290718 in words is "forty million, two hundred ninety thousand, seven hundred eighteen".