13855272 has 64 divisors (see below), whose sum is σ = 37972800. Its totient is φ = 4193280.

The previous prime is 13855249. The next prime is 13855297. The reversal of 13855272 is 27255831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11247 + ... + 12417.

It is an arithmetic number, because the mean of its divisors is an integer number (593325).

Almost surely, 2^13855272 is an apocalyptic number.

13855272 is a gapful number since it is divisible by the number (12) 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 13855272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18986400).

13855272 is an abundant number, since it is smaller than the sum of its proper divisors (24117528).

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

13855272 is a wasteful number, since it uses less digits than its factorization.

13855272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1222 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 13855272 is about 3722.2670511397. The cubic root of 13855272 is about 240.1808359312.

The spelling of 13855272 in words is "thirteen million, eight hundred fifty-five thousand, two hundred seventy-two".