288949904 has 20 divisors (see below), whose sum is σ = 569331120. Its totient is φ = 142025760.

The previous prime is 288949883. The next prime is 288949931. The reversal of 288949904 is 409949882.

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, 152102 + ... + 153989.

It is an arithmetic number, because the mean of its divisors is an integer number (28466556).

Almost surely, 2^288949904 is an apocalyptic number.

It is an amenable number.

288949904 is a deficient number, since it is larger than the sum of its proper divisors (280381216).

288949904 is a wasteful number, since it uses less digits than its factorization.

288949904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306158 (or 306152 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 288949904 is about 16998.5265243785. The cubic root of 288949904 is about 661.1106978904.

The spelling of 288949904 in words is "two hundred eighty-eight million, nine hundred forty-nine thousand, nine hundred four".