389501004 has 12 divisors (see below), whose sum is σ = 908835704. Its totient is φ = 129833664.

The previous prime is 389500987. The next prime is 389501011. The reversal of 389501004 is 400105983.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×389501004² = 303422064234016032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16229197 + ... + 16229220.

Almost surely, 2^389501004 is an apocalyptic number.

It is an amenable number.

389501004 is an abundant number, since it is smaller than the sum of its proper divisors (519334700).

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

389501004 is a wasteful number, since it uses less digits than its factorization.

389501004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32458424 (or 32458422 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 389501004 is about 19735.7797920427. The cubic root of 389501004 is about 730.3026230128.

Adding to 389501004 its reverse (400105983), we get a palindrome (789606987).

The spelling of 389501004 in words is "three hundred eighty-nine million, five hundred one thousand, four".