288295988 has 12 divisors (see below), whose sum is σ = 504985572. Its totient is φ = 144014400.

The previous prime is 288295963. The next prime is 288295993. The reversal of 288295988 is 889592882.

It can be written as a sum of positive squares in 2 ways, for example, as 194825764 + 93470224 = 13958^2 + 9668^2 .

It is a super-2 number, since 2×288295988² = 166229153393792288, which contains 22 as substring.

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, 28463 + ... + 37238.

It is an arithmetic number, because the mean of its divisors is an integer number (42082131).

Almost surely, 2^288295988 is an apocalyptic number.

It is an amenable number.

288295988 is a deficient number, since it is larger than the sum of its proper divisors (216689584).

288295988 is a wasteful number, since it uses less digits than its factorization.

288295988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66802 (or 66800 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 59.

The square root of 288295988 is about 16979.2811390824. The cubic root of 288295988 is about 660.6116063115.

The spelling of 288295988 in words is "two hundred eighty-eight million, two hundred ninety-five thousand, nine hundred eighty-eight".