280848128 has 36 divisors (see below), whose sum is σ = 611568888. Its totient is φ = 127656960.

The previous prime is 280848067. The next prime is 280848131. The reversal of 280848128 is 821848082.

It is a super-2 number, since 2×280848128² = 157751342002208768, which contains 22 as substring.

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, 47051 + ... + 52682.

Almost surely, 2^280848128 is an apocalyptic number.

It is an amenable number.

280848128 is an abundant number, since it is smaller than the sum of its proper divisors (330720760).

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

280848128 is an equidigital number, since it uses as much as digits as its factorization.

280848128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99760 (or 99746 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 41.

The square root of 280848128 is about 16758.5240400221. The cubic root of 280848128 is about 654.8731397768.

The spelling of 280848128 in words is "two hundred eighty million, eight hundred forty-eight thousand, one hundred twenty-eight".