280131260 has 48 divisors (see below), whose sum is σ = 615650112. Its totient is φ = 106867200.

The previous prime is 280131259. The next prime is 280131289. The reversal of 280131260 is 62131082.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211400 + ... + 212720.

It is an arithmetic number, because the mean of its divisors is an integer number (12826044).

Almost surely, 2^280131260 is an apocalyptic number.

280131260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280131260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307825056).

280131260 is an abundant number, since it is smaller than the sum of its proper divisors (335518852).

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

280131260 is a wasteful number, since it uses less digits than its factorization.

280131260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 280131260 is about 16737.1222138096. The cubic root of 280131260 is about 654.3154746779.

The spelling of 280131260 in words is "two hundred eighty million, one hundred thirty-one thousand, two hundred sixty".