389430552 has 32 divisors (see below), whose sum is σ = 1112659200. Its totient is φ = 111265824.

The previous prime is 389430551. The next prime is 389430553. The reversal of 389430552 is 255034983.

It is an interprime number because it is at equal distance from previous prime (389430551) and next prime (389430553).

It is a self number, because there is not a number n which added to its sum of digits gives 389430552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389430551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158852 + ... + 1159187.

It is an arithmetic number, because the mean of its divisors is an integer number (34770600).

Almost surely, 2^389430552 is an apocalyptic number.

It is an amenable number.

389430552 is an abundant number, since it is smaller than the sum of its proper divisors (723228648).

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

389430552 is a wasteful number, since it uses less digits than its factorization.

389430552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318055 (or 2318051 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 389430552 is about 19733.9948312550. The cubic root of 389430552 is about 730.2585885668.

The spelling of 389430552 in words is "three hundred eighty-nine million, four hundred thirty thousand, five hundred fifty-two".