389523000 has 64 divisors (see below), whose sum is σ = 1215321120. Its totient is φ = 103872000.

The previous prime is 389522957. The next prime is 389523019. The reversal of 389523000 is 325983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61921 + ... + 67920.

Almost surely, 2^389523000 is an apocalyptic number.

389523000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389523000 is an abundant number, since it is smaller than the sum of its proper divisors (825798120).

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

389523000 is a wasteful number, since it uses less digits than its factorization.

389523000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129865 (or 129851 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 389523000 is about 19736.3370461694. The cubic root of 389523000 is about 730.3163700327.

Adding to 389523000 its reverse (325983), we get a palindrome (389848983).

The spelling of 389523000 in words is "three hundred eighty-nine million, five hundred twenty-three thousand".