280055676 has 12 divisors (see below), whose sum is σ = 653463272. Its totient is φ = 93351888.

The previous prime is 280055663. The next prime is 280055693. The reversal of 280055676 is 676550082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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, 11668975 + ... + 11668998.

Almost surely, 2^280055676 is an apocalyptic number.

It is an amenable number.

280055676 is an abundant number, since it is smaller than the sum of its proper divisors (373407596).

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

280055676 is a wasteful number, since it uses less digits than its factorization.

280055676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337980 (or 23337978 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 280055676 is about 16734.8640866904. The cubic root of 280055676 is about 654.2566210420.

The spelling of 280055676 in words is "two hundred eighty million, fifty-five thousand, six hundred seventy-six".