280563952 has 10 divisors (see below), whose sum is σ = 543592688. Its totient is φ = 140281968.

The previous prime is 280563947. The next prime is 280563953. The reversal of 280563952 is 259365082.

It is a super-2 number, since 2×280563952² = 157432262323716608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280563953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8767608 + ... + 8767639.

Almost surely, 2^280563952 is an apocalyptic number.

It is an amenable number.

280563952 is a deficient number, since it is larger than the sum of its proper divisors (263028736).

280563952 is a wasteful number, since it uses less digits than its factorization.

280563952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17535255 (or 17535249 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 280563952 is about 16750.0433432275. The cubic root of 280563952 is about 654.6521875797.

The spelling of 280563952 in words is "two hundred eighty million, five hundred sixty-three thousand, nine hundred fifty-two".