288052866 has 12 divisors (see below), whose sum is σ = 624114582. Its totient is φ = 96017616.

The previous prime is 288052859. The next prime is 288052889. The reversal of 288052866 is 668250882.

It can be written as a sum of positive squares in only one way, i.e., 288014841 + 38025 = 16971^2 + 195^2 .

It is a super-2 number, since 2×288052866² = 165948907221627912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8001451 + ... + 8001486.

Almost surely, 2^288052866 is an apocalyptic number.

288052866 is an abundant number, since it is smaller than the sum of its proper divisors (336061716).

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

288052866 is a wasteful number, since it uses less digits than its factorization.

288052866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16002945 (or 16002942 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 288052866 is about 16972.1202564677. The cubic root of 288052866 is about 660.4258546415.

The spelling of 288052866 in words is "two hundred eighty-eight million, fifty-two thousand, eight hundred sixty-six".