389135900 has 18 divisors (see below), whose sum is σ = 844425120. Its totient is φ = 155654320.

The previous prime is 389135867. The next prime is 389135927. The reversal of 389135900 is 9531983.

389135900 = T₅₅₆₇ + T₅₅₆₈ + ... + T₅₅₉₁.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1945580 + ... + 1945779.

Almost surely, 2^389135900 is an apocalyptic number.

It is an amenable number.

389135900 is an abundant number, since it is smaller than the sum of its proper divisors (455289220).

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

389135900 is a wasteful number, since it uses less digits than its factorization.

389135900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891373 (or 3891366 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 389135900 is about 19726.5278242269. The cubic root of 389135900 is about 730.0743653521.

The spelling of 389135900 in words is "three hundred eighty-nine million, one hundred thirty-five thousand, nine hundred".