13730280 has 32 divisors (see below), whose sum is σ = 41191200. Its totient is φ = 3661376.

The previous prime is 13730263. The next prime is 13730317. The reversal of 13730280 is 8203731.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13730280.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57090 + ... + 57329.

It is an arithmetic number, because the mean of its divisors is an integer number (1287225).

Almost surely, 2^13730280 is an apocalyptic number.

13730280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13730280 is an abundant number, since it is smaller than the sum of its proper divisors (27460920).

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

13730280 is a wasteful number, since it uses less digits than its factorization.

13730280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114433 (or 114429 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13730280 is about 3705.4392452178. The cubic root of 13730280 is about 239.4564086034.

The spelling of 13730280 in words is "thirteen million, seven hundred thirty thousand, two hundred eighty".