389534500 has 24 divisors (see below), whose sum is σ = 850744440. Its totient is φ = 155813600.

The previous prime is 389534491. The next prime is 389534513. The reversal of 389534500 is 5435983.

It can be written as a sum of positive squares in 4 ways, for example, as 22505536 + 367028964 = 4744^2 + 19158^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 389534500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389035 + ... + 390034.

It is an arithmetic number, because the mean of its divisors is an integer number (35447685).

Almost surely, 2^389534500 is an apocalyptic number.

It is an amenable number.

389534500 is an abundant number, since it is smaller than the sum of its proper divisors (461209940).

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

389534500 is a wasteful number, since it uses less digits than its factorization.

389534500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779088 (or 779076 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 389534500 is about 19736.6283848078. The cubic root of 389534500 is about 730.3235570756.

The spelling of 389534500 in words is "three hundred eighty-nine million, five hundred thirty-four thousand, five hundred".