280887104 has 14 divisors (see below), whose sum is σ = 557385474. Its totient is φ = 140443520.

The previous prime is 280887067. The next prime is 280887119. The reversal of 280887104 is 401788082.

It is a happy number.

280887104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 150013504 + 130873600 = 12248^2 + 11440^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194367 + ... + 2194494.

Almost surely, 2^280887104 is an apocalyptic number.

It is an amenable number.

280887104 is a deficient number, since it is larger than the sum of its proper divisors (276498370).

280887104 is an equidigital number, since it uses as much as digits as its factorization.

280887104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388873 (or 4388863 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 280887104 is about 16759.6868705832. The cubic root of 280887104 is about 654.9034327268.

The spelling of 280887104 in words is "two hundred eighty million, eight hundred eighty-seven thousand, one hundred four".