289725504 has 56 divisors (see below), whose sum is σ = 791309568. Its totient is φ = 93457920.

The previous prime is 289725427. The next prime is 289725521. The reversal of 289725504 is 405527982.

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, 18387 + ... + 30290.

It is an arithmetic number, because the mean of its divisors is an integer number (14130528).

Almost surely, 2^289725504 is an apocalyptic number.

289725504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

289725504 is an abundant number, since it is smaller than the sum of its proper divisors (501584064).

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

289725504 is a wasteful number, since it uses less digits than its factorization.

289725504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48723 (or 48713 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 289725504 is about 17021.3249778036. The cubic root of 289725504 is about 661.7016877143.

The spelling of 289725504 in words is "two hundred eighty-nine million, seven hundred twenty-five thousand, five hundred four".