389956404 has 48 divisors (see below), whose sum is σ = 981626688. Its totient is φ = 120027648.

The previous prime is 389956373. The next prime is 389956423. The reversal of 389956404 is 404659983.

It is a super-2 number, since 2×389956404² = 304131994041222432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7222 + ... + 28845.

It is an arithmetic number, because the mean of its divisors is an integer number (20450556).

Almost surely, 2^389956404 is an apocalyptic number.

389956404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

389956404 is an abundant number, since it is smaller than the sum of its proper divisors (591670284).

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

389956404 is a wasteful number, since it uses less digits than its factorization.

389956404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36144 (or 36142 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 389956404 is about 19747.3138426471. The cubic root of 389956404 is about 730.5871325768.

The spelling of 389956404 in words is "three hundred eighty-nine million, nine hundred fifty-six thousand, four hundred four".