280772433 has 8 divisors (see below), whose sum is σ = 415959200. Its totient is φ = 187181604.

The previous prime is 280772389. The next prime is 280772497. The reversal of 280772433 is 334277082.

It is not a de Polignac number, because 280772433 - 2⁹ = 280771921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280777433) 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, 5199463 + ... + 5199516.

It is an arithmetic number, because the mean of its divisors is an integer number (51994900).

Almost surely, 2^280772433 is an apocalyptic number.

It is an amenable number.

280772433 is a deficient number, since it is larger than the sum of its proper divisors (135186767).

280772433 is a wasteful number, since it uses less digits than its factorization.

280772433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10398988 (or 10398982 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 280772433 is about 16756.2654848865. The cubic root of 280772433 is about 654.8143000559.

The spelling of 280772433 in words is "two hundred eighty million, seven hundred seventy-two thousand, four hundred thirty-three".