280283972 has 24 divisors (see below), whose sum is σ = 517003200. Its totient is φ = 132588576.

The previous prime is 280283963. The next prime is 280283977. The reversal of 280283972 is 279382082.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (280283977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67838 + ... + 71850.

It is an arithmetic number, because the mean of its divisors is an integer number (21541800).

Almost surely, 2^280283972 is an apocalyptic number.

It is an amenable number.

280283972 is a deficient number, since it is larger than the sum of its proper divisors (236719228).

280283972 is a wasteful number, since it uses less digits than its factorization.

280283972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4955 (or 4953 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 280283972 is about 16741.6836668240. The cubic root of 280283972 is about 654.4343518940.

The spelling of 280283972 in words is "two hundred eighty million, two hundred eighty-three thousand, nine hundred seventy-two".