13856280 has 32 divisors (see below), whose sum is σ = 41569200. Its totient is φ = 3694976.

The previous prime is 13856279. The next prime is 13856299. The reversal of 13856280 is 8265831.

It is a happy number.

13856280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 57615 + ... + 57854.

Almost surely, 2^13856280 is an apocalyptic number.

13856280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13856280 is an abundant number, since it is smaller than the sum of its proper divisors (27712920).

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

13856280 is a wasteful number, since it uses less digits than its factorization.

13856280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115483 (or 115479 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 13856280 is about 3722.4024500314. The cubic root of 13856280 is about 240.1866603426.

The spelling of 13856280 in words is "thirteen million, eight hundred fifty-six thousand, two hundred eighty".