389814372 has 18 divisors (see below), whose sum is σ = 985364198. Its totient is φ = 129938112.

The previous prime is 389814349. The next prime is 389814377. The reversal of 389814372 is 273418983.

It can be written as a sum of positive squares in only one way, i.e., 297769536 + 92044836 = 17256^2 + 9594^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (389814377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5414053 + ... + 5414124.

Almost surely, 2^389814372 is an apocalyptic number.

It is an amenable number.

389814372 is an abundant number, since it is smaller than the sum of its proper divisors (595549826).

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

389814372 is a wasteful number, since it uses less digits than its factorization.

389814372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10828187 (or 10828182 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 389814372 is about 19743.7172791752. The cubic root of 389814372 is about 730.4984223593.

The spelling of 389814372 in words is "three hundred eighty-nine million, eight hundred fourteen thousand, three hundred seventy-two".