389134672 has 10 divisors (see below), whose sum is σ = 753948458. Its totient is φ = 194567328.

The previous prime is 389134633. The next prime is 389134679. The reversal of 389134672 is 276431983.

It can be written as a sum of positive squares in only one way, i.e., 362673936 + 26460736 = 19044^2 + 5144^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389134679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12160443 + ... + 12160474.

Almost surely, 2^389134672 is an apocalyptic number.

It is an amenable number.

389134672 is a deficient number, since it is larger than the sum of its proper divisors (364813786).

389134672 is a wasteful number, since it uses less digits than its factorization.

389134672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24320925 (or 24320919 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 389134672 is about 19726.4966986031. The cubic root of 389134672 is about 730.0735973837.

The spelling of 389134672 in words is "three hundred eighty-nine million, one hundred thirty-four thousand, six hundred seventy-two".