389975382 has 24 divisors (see below), whose sum is σ = 847841904. Its totient is φ = 129546384.

The previous prime is 389975371. The next prime is 389975423. The reversal of 389975382 is 283579983.

It is a happy number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 31698 + ... + 42245.

It is an arithmetic number, because the mean of its divisors is an integer number (35326746).

Almost surely, 2^389975382 is an apocalyptic number.

389975382 is an abundant number, since it is smaller than the sum of its proper divisors (457866522).

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

389975382 is a wasteful number, since it uses less digits than its factorization.

389975382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74244 (or 74241 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 389975382 is about 19747.7943578517. The cubic root of 389975382 is about 730.5989842074.

The spelling of 389975382 in words is "three hundred eighty-nine million, nine hundred seventy-five thousand, three hundred eighty-two".