288972656 has 40 divisors (see below), whose sum is σ = 640685184. Its totient is φ = 123687360.

The previous prime is 288972643. The next prime is 288972661. The reversal of 288972656 is 656279882.

It is a junction number, because it is equal to n+sod(n) for n = 288972598 and 288972607.

It is a congruent number.

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, 142691 + ... + 144701.

Almost surely, 2^288972656 is an apocalyptic number.

It is an amenable number.

288972656 is an abundant number, since it is smaller than the sum of its proper divisors (351712528).

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

288972656 is a wasteful number, since it uses less digits than its factorization.

288972656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309 (or 3303 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 288972656 is about 16999.1957456816. The cubic root of 288972656 is about 661.1280494516.

The spelling of 288972656 in words is "two hundred eighty-eight million, nine hundred seventy-two thousand, six hundred fifty-six".