40790431 has 12 divisors (see below), whose sum is σ = 46788336. Its totient is φ = 35467520.

The previous prime is 40790383. The next prime is 40790441. The reversal of 40790431 is 13409704.

It is not a de Polignac number, because 40790431 - 2¹³ = 40782239 is a prime.

It is a super-2 number, since 2×40790431² = 3327718522331522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40790431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40790441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4546 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (3899028).

Almost surely, 2^40790431 is an apocalyptic number.

40790431 is a deficient number, since it is larger than the sum of its proper divisors (5997905).

40790431 is a wasteful number, since it uses less digits than its factorization.

40790431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702 (or 14691 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40790431 is about 6386.7386826142. The cubic root of 40790431 is about 344.2332084369.

The spelling of 40790431 in words is "forty million, seven hundred ninety thousand, four hundred thirty-one".