280980912 has 40 divisors (see below), whose sum is σ = 727384000. Its totient is φ = 93464640.

The previous prime is 280980881. The next prime is 280980919. The reversal of 280980912 is 219089082.

It is not an unprimeable number, because it can be changed into a prime (280980919) 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, 18087 + ... + 29817.

It is an arithmetic number, because the mean of its divisors is an integer number (18184600).

Almost surely, 2^280980912 is an apocalyptic number.

It is an amenable number.

280980912 is an abundant number, since it is smaller than the sum of its proper divisors (446403088).

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

280980912 is a wasteful number, since it uses less digits than its factorization.

280980912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241 (or 12235 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 280980912 is about 16762.4852572642. The cubic root of 280980912 is about 654.9763307493.

The spelling of 280980912 in words is "two hundred eighty million, nine hundred eighty thousand, nine hundred twelve".