40402031344 has 40 divisors (see below), whose sum is σ = 78901200000. Its totient is φ = 20040651456.

The previous prime is 40402031291. The next prime is 40402031353. The reversal of 40402031344 is 44313020404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3327717 + ... + 3339835.

It is an arithmetic number, because the mean of its divisors is an integer number (1972530000).

Almost surely, 2^40402031344 is an apocalyptic number.

It is an amenable number.

40402031344 is a deficient number, since it is larger than the sum of its proper divisors (38499168656).

40402031344 is a wasteful number, since it uses less digits than its factorization.

40402031344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765 (or 13759 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40402031344 its reverse (44313020404), we get a palindrome (84715051748).

The spelling of 40402031344 in words is "forty billion, four hundred two million, thirty-one thousand, three hundred forty-four".