280230939 has 6 divisors (see below), whose sum is σ = 404778036. Its totient is φ = 186820620.

The previous prime is 280230931. The next prime is 280230947. The reversal of 280230939 is 939032082.

It is an interprime number because it is at equal distance from previous prime (280230931) and next prime (280230947).

It is not a de Polignac number, because 280230939 - 2³ = 280230931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280230931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15568377 + ... + 15568394.

It is an arithmetic number, because the mean of its divisors is an integer number (67463006).

Almost surely, 2^280230939 is an apocalyptic number.

280230939 is a deficient number, since it is larger than the sum of its proper divisors (124547097).

280230939 is a wasteful number, since it uses less digits than its factorization.

280230939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31136777 (or 31136774 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 280230939 is about 16740.0997308857. The cubic root of 280230939 is about 654.3930737503.

The spelling of 280230939 in words is "two hundred eighty million, two hundred thirty thousand, nine hundred thirty-nine".