389428600 has 48 divisors (see below), whose sum is σ = 987738120. Its totient is φ = 141609600.

The previous prime is 389428583. The next prime is 389428643. The reversal of 389428600 is 6824983.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86307 + ... + 90706.

Almost surely, 2^389428600 is an apocalyptic number.

It is an amenable number.

389428600 is an abundant number, since it is smaller than the sum of its proper divisors (598309520).

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

389428600 is a wasteful number, since it uses less digits than its factorization.

389428600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177040 (or 177031 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 389428600 is about 19733.9453733915. The cubic root of 389428600 is about 730.2573684372.

The spelling of 389428600 in words is "three hundred eighty-nine million, four hundred twenty-eight thousand, six hundred".