280050868 has 12 divisors (see below), whose sum is σ = 490265860. Its totient is φ = 139974912.

The previous prime is 280050851. The next prime is 280050907. The reversal of 280050868 is 868050082.

It can be written as a sum of positive squares in 2 ways, for example, as 244672164 + 35378704 = 15642^2 + 5948^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630 + ... + 23722.

Almost surely, 2^280050868 is an apocalyptic number.

It is an amenable number.

280050868 is a deficient number, since it is larger than the sum of its proper divisors (210214992).

280050868 is a wasteful number, since it uses less digits than its factorization.

280050868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25266 (or 25264 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 280050868 is about 16734.7204338764. The cubic root of 280050868 is about 654.2528769248.

The spelling of 280050868 in words is "two hundred eighty million, fifty thousand, eight hundred sixty-eight".