280468080 has 60 divisors (see below), whose sum is σ = 941907720. Its totient is φ = 74791296.

The previous prime is 280468061. The next prime is 280468087. The reversal of 280468080 is 80864082.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280468087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194050 + ... + 195489.

It is an arithmetic number, because the mean of its divisors is an integer number (15698462).

Almost surely, 2^280468080 is an apocalyptic number.

280468080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280468080 is an abundant number, since it is smaller than the sum of its proper divisors (661439640).

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

280468080 is a wasteful number, since it uses less digits than its factorization.

280468080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389558 (or 389549 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 280468080 is about 16747.1812553635. The cubic root of 280468080 is about 654.5776116356.

The spelling of 280468080 in words is "two hundred eighty million, four hundred sixty-eight thousand, eighty".