280713080 has 32 divisors (see below), whose sum is σ = 648678240. Its totient is φ = 109249920.

The previous prime is 280713079. The next prime is 280713089. The reversal of 280713080 is 80317082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280713089) 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, 93356 + ... + 96315.

It is an arithmetic number, because the mean of its divisors is an integer number (20271195).

Almost surely, 2^280713080 is an apocalyptic number.

280713080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280713080 is an abundant number, since it is smaller than the sum of its proper divisors (367965160).

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

280713080 is a wasteful number, since it uses less digits than its factorization.

280713080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189719 (or 189715 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 280713080 is about 16754.4943224199. The cubic root of 280713080 is about 654.7681560053.

The spelling of 280713080 in words is "two hundred eighty million, seven hundred thirteen thousand, eighty".