289803056 has 20 divisors (see below), whose sum is σ = 562494504. Its totient is φ = 144643200.

The previous prime is 289803053. The next prime is 289803071. The reversal of 289803056 is 650308982.

It is a super-2 number, since 2×289803056² = 167971622533878272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289803053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6725 + ... + 24996.

Almost surely, 2^289803056 is an apocalyptic number.

It is an amenable number.

289803056 is a deficient number, since it is larger than the sum of its proper divisors (272691448).

289803056 is a wasteful number, since it uses less digits than its factorization.

289803056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32300 (or 32294 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 289803056 is about 17023.6029089027. The cubic root of 289803056 is about 661.7607225715.

The spelling of 289803056 in words is "two hundred eighty-nine million, eight hundred three thousand, fifty-six".