40310790 has 64 divisors (see below), whose sum is σ = 106771392. Its totient is φ = 9676800.

The previous prime is 40310779. The next prime is 40310807. The reversal of 40310790 is 9701304.

40310790 = 528² + 529² + ... + 644².

It is a self number, because there is not a number n which added to its sum of digits gives 40310790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14730 + ... + 17250.

It is an arithmetic number, because the mean of its divisors is an integer number (1668303).

Almost surely, 2^40310790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40310790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53385696).

40310790 is an abundant number, since it is smaller than the sum of its proper divisors (66460602).

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

40310790 is a wasteful number, since it uses less digits than its factorization.

40310790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 40310790 is about 6349.0778858036. The cubic root of 40310790 is about 342.8786442369.

The spelling of 40310790 in words is "forty million, three hundred ten thousand, seven hundred ninety".