289452992 has 28 divisors (see below), whose sum is σ = 604616520. Its totient is φ = 137108736.

The previous prime is 289452979. The next prime is 289453037. The reversal of 289452992 is 299254982.

It is a self number, because there is not a number n which added to its sum of digits gives 289452992.

It is a congruent number.

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, 117803 + ... + 120234.

Almost surely, 2^289452992 is an apocalyptic number.

It is an amenable number.

289452992 is an abundant number, since it is smaller than the sum of its proper divisors (315163528).

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

289452992 is a wasteful number, since it uses less digits than its factorization.

289452992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238068 (or 238058 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 289452992 is about 17013.3180773181. The cubic root of 289452992 is about 661.4941599987.

The spelling of 289452992 in words is "two hundred eighty-nine million, four hundred fifty-two thousand, nine hundred ninety-two".