280264 has 16 divisors (see below), whose sum is σ = 536220. Its totient is φ = 137280.

The previous prime is 280253. The next prime is 280277. The reversal of 280264 is 462082.

It can be written as a sum of positive squares in 2 ways, for example, as 260100 + 20164 = 510^2 + 142^2 .

It is a d-powerful number, because it can be written as 2⁷ + 8 + 2⁷ + 0 + 6⁷ + 4³ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94 + ... + 754.

2²⁸⁰²⁶⁴ is an apocalyptic number.

It is an amenable number.

280264 is a deficient number, since it is larger than the sum of its proper divisors (255956).

280264 is a wasteful number, since it uses less digits than its factorization.

280264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 280264 is about 529.3996599923. The cubic root of 280264 is about 65.4418807334.

It can be divided in two parts, 280 and 264, that multiplied together give a triangular number (73920 = T₃₈₄).

The spelling of 280264 in words is "two hundred eighty thousand, two hundred sixty-four".