280225984 has 28 divisors (see below), whose sum is σ = 585343000. Its totient is φ = 132738048.

The previous prime is 280225973. The next prime is 280225993. The reversal of 280225984 is 489522082.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114009 + ... + 116440.

Almost surely, 2^280225984 is an apocalyptic number.

It is an amenable number.

280225984 is an abundant number, since it is smaller than the sum of its proper divisors (305117016).

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

280225984 is a wasteful number, since it uses less digits than its factorization.

280225984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230480 (or 230470 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 280225984 is about 16739.9517323080. The cubic root of 280225984 is about 654.3892167687.

The spelling of 280225984 in words is "two hundred eighty million, two hundred twenty-five thousand, nine hundred eighty-four".