745983938 has 54 divisors (see below), whose sum is σ = 1360291833. Its totient is φ = 305917920.

The previous prime is 745983913. The next prime is 745983943. The reversal of 745983938 is 839389547.

It can be written as a sum of positive squares in 2 ways, for example, as 666827329 + 79156609 = 25823^2 + 8897^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19313.

It is a Duffinian number.

Its product of digits (6531840) is a multiple of the sum of its prime factors (256).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8381798 + ... + 8381886.

Almost surely, 2^745983938 is an apocalyptic number.

745983938 is a deficient number, since it is larger than the sum of its proper divisors (614307895).

745983938 is an equidigital number, since it uses as much as digits as its factorization.

745983938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 129 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 56.

The square root of 745983938 is about 27312.7065301116. The cubic root of 745983938 is about 906.9356889538.

The spelling of 745983938 in words is "seven hundred forty-five million, nine hundred eighty-three thousand, nine hundred thirty-eight".