288507968 has 28 divisors (see below), whose sum is σ = 654295872. Its totient is φ = 123646080.

The previous prime is 288507953. The next prime is 288507971. The reversal of 288507968 is 869705882.

It is a tau number, because it is divible by the number of its divisors (28).

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, 321548 + ... + 322443.

Almost surely, 2^288507968 is an apocalyptic number.

288507968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

288507968 is an abundant number, since it is smaller than the sum of its proper divisors (365787904).

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

288507968 is an equidigital number, since it uses as much as digits as its factorization.

288507968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644010 (or 644000 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 288507968 is about 16985.5223057756. The cubic root of 288507968 is about 660.7734794626.

The spelling of 288507968 in words is "two hundred eighty-eight million, five hundred seven thousand, nine hundred sixty-eight".