13868280 has 64 divisors (see below), whose sum is σ = 46231200. Its totient is φ = 3697920.

The previous prime is 13868279. The next prime is 13868297. The reversal of 13868280 is 8286831.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

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, 5341 + ... + 7500.

Almost surely, 2^13868280 is an apocalyptic number.

13868280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13868280 is an abundant number, since it is smaller than the sum of its proper divisors (32362920).

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

13868280 is a wasteful number, since it uses less digits than its factorization.

13868280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861 (or 12851 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 13868280 is about 3724.0139634540. The cubic root of 13868280 is about 240.2559768856.

The spelling of 13868280 in words is "thirteen million, eight hundred sixty-eight thousand, two hundred eighty".