288232272 has 60 divisors (see below), whose sum is σ = 808280980. Its totient is φ = 95883264.

The previous prime is 288232249. The next prime is 288232279. The reversal of 288232272 is 272232882.

It can be written as a sum of positive squares in 2 ways, for example, as 156350016 + 131882256 = 12504^2 + 11484^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288232279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81354 + ... + 84822.

Almost surely, 2^288232272 is an apocalyptic number.

It is an amenable number.

288232272 is an abundant number, since it is smaller than the sum of its proper divisors (520048708).

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

288232272 is a wasteful number, since it uses less digits than its factorization.

288232272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060 (or 4051 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 288232272 is about 16977.4047486652. The cubic root of 288232272 is about 660.5629356951.

The spelling of 288232272 in words is "two hundred eighty-eight million, two hundred thirty-two thousand, two hundred seventy-two".