389034900 has 90 divisors (see below), whose sum is σ = 1261123710. Its totient is φ = 103740480.

The previous prime is 389034887. The next prime is 389034917. The reversal of 389034900 is 9430983.

It can be written as a sum of positive squares in 3 ways, for example, as 22924944 + 366109956 = 4788^2 + 19134^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 15915 + ... + 32114.

Almost surely, 2^389034900 is an apocalyptic number.

389034900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389034900 is an abundant number, since it is smaller than the sum of its proper divisors (872088810).

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

389034900 is a wasteful number, since it uses less digits than its factorization.

389034900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48055 (or 48039 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 389034900 is about 19723.9676535934. The cubic root of 389034900 is about 730.0111964255.

The spelling of 389034900 in words is "three hundred eighty-nine million, thirty-four thousand, nine hundred".