288440652 has 12 divisors (see below), whose sum is σ = 673028216. Its totient is φ = 96146880.

The previous prime is 288440597. The next prime is 288440671. The reversal of 288440652 is 256044882.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 288440652.

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, 12018349 + ... + 12018372.

Almost surely, 2^288440652 is an apocalyptic number.

It is an amenable number.

288440652 is an abundant number, since it is smaller than the sum of its proper divisors (384587564).

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

288440652 is a wasteful number, since it uses less digits than its factorization.

288440652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036728 (or 24036726 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 288440652 is about 16983.5406202594. The cubic root of 288440652 is about 660.7220839006.

The spelling of 288440652 in words is "two hundred eighty-eight million, four hundred forty thousand, six hundred fifty-two".