280296960 has 80 divisors (see below), whose sum is σ = 896098896. Its totient is φ = 74743808.

The previous prime is 280296943. The next prime is 280296997. The reversal of 280296960 is 69692082.

280296960 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10569 + ... + 25928.

Almost surely, 2^280296960 is an apocalyptic number.

280296960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280296960 is an abundant number, since it is smaller than the sum of its proper divisors (615801936).

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

280296960 is an equidigital number, since it uses as much as digits as its factorization.

280296960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36523 (or 36507 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 280296960 is about 16742.0715564114. The cubic root of 280296960 is about 654.4444602875. Note that the first 4 decimals are identical.

The spelling of 280296960 in words is "two hundred eighty million, two hundred ninety-six thousand, nine hundred sixty".