280631452 has 12 divisors (see below), whose sum is σ = 491793120. Its totient is φ = 140119136.

The previous prime is 280631447. The next prime is 280631453. The reversal of 280631452 is 254136082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280631453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45913 + ... + 51664.

It is an arithmetic number, because the mean of its divisors is an integer number (40982760).

Almost surely, 2^280631452 is an apocalyptic number.

It is an amenable number.

280631452 is a deficient number, since it is larger than the sum of its proper divisors (211161668).

280631452 is a wasteful number, since it uses less digits than its factorization.

280631452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98300 (or 98298 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 280631452 is about 16752.0581422105. The cubic root of 280631452 is about 654.7046836079.

The spelling of 280631452 in words is "two hundred eighty million, six hundred thirty-one thousand, four hundred fifty-two".