40938439764 has 24 divisors (see below), whose sum is σ = 95531046688. Its totient is φ = 13645000800.

The previous prime is 40938439739. The next prime is 40938439849. The reversal of 40938439764 is 46793483904.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12414 + ... + 286410.

Almost surely, 2^40938439764 is an apocalyptic number.

It is an amenable number.

40938439764 is an abundant number, since it is smaller than the sum of its proper divisors (54592606924).

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

40938439764 is a wasteful number, since it uses less digits than its factorization.

40938439764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286455 (or 286453 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 40938439764 in words is "forty billion, nine hundred thirty-eight million, four hundred thirty-nine thousand, seven hundred sixty-four".