288397652 has 12 divisors (see below), whose sum is σ = 506222976. Its totient is φ = 143762520.

The previous prime is 288397651. The next prime is 288397657. The reversal of 288397652 is 256793882.

It is a super-2 number, since 2×288397652² = 166346411358226208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 288397652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288397651) 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 3 ways as a sum of consecutive naturals, for example, 107588 + ... + 110235.

It is an arithmetic number, because the mean of its divisors is an integer number (42185248).

Almost surely, 2^288397652 is an apocalyptic number.

It is an amenable number.

288397652 is a deficient number, since it is larger than the sum of its proper divisors (217825324).

288397652 is a wasteful number, since it uses less digits than its factorization.

288397652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218158 (or 218156 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 288397652 is about 16982.2746415196. The cubic root of 288397652 is about 660.6892493454.

The spelling of 288397652 in words is "two hundred eighty-eight million, three hundred ninety-seven thousand, six hundred fifty-two".