389440944 has 30 divisors (see below), whose sum is σ = 1089894156. Its totient is φ = 129813600.

The previous prime is 389440939. The next prime is 389440963. The reversal of 389440944 is 449044983.

It is a super-2 number, since 2×389440944² = 303328497727222272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389440944.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1352082 + ... + 1352369.

Almost surely, 2^389440944 is an apocalyptic number.

It is an amenable number.

389440944 is an abundant number, since it is smaller than the sum of its proper divisors (700453212).

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

389440944 is a wasteful number, since it uses less digits than its factorization.

389440944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704465 (or 2704456 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 389440944 is about 19734.2581314829. The cubic root of 389440944 is about 730.2650841877.

The spelling of 389440944 in words is "three hundred eighty-nine million, four hundred forty thousand, nine hundred forty-four".