288870916 has 24 divisors (see below), whose sum is σ = 513414720. Its totient is φ = 142197792.

The previous prime is 288870899. The next prime is 288870937. The reversal of 288870916 is 619078882.

It is a super-2 number, since 2×288870916² = 166892812221358112, 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 288870916.

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, 71790 + ... + 75706.

It is an arithmetic number, because the mean of its divisors is an integer number (21392280).

Almost surely, 2^288870916 is an apocalyptic number.

It is an amenable number.

288870916 is a deficient number, since it is larger than the sum of its proper divisors (224543804).

288870916 is a wasteful number, since it uses less digits than its factorization.

288870916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 288870916 is about 16996.2029877264. The cubic root of 288870916 is about 661.0504514946.

The spelling of 288870916 in words is "two hundred eighty-eight million, eight hundred seventy thousand, nine hundred sixteen".