40580731 has 4 divisors (see below), whose sum is σ = 41268600. Its totient is φ = 39892864.

The previous prime is 40580723. The next prime is 40580737. The reversal of 40580731 is 13708504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40580731 - 2³ = 40580723 is a prime.

It is a super-2 number, since 2×40580731² = 3293591456988722, 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 40580731.

It is not an unprimeable number, because it can be changed into a prime (40580737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343846 + ... + 343963.

It is an arithmetic number, because the mean of its divisors is an integer number (10317150).

Almost surely, 2^40580731 is an apocalyptic number.

40580731 is a deficient number, since it is larger than the sum of its proper divisors (687869).

40580731 is an equidigital number, since it uses as much as digits as its factorization.

40580731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687868.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 40580731 is about 6370.3006993391. The cubic root of 40580731 is about 343.6423038493.

The spelling of 40580731 in words is "forty million, five hundred eighty thousand, seven hundred thirty-one".