13722272 has 24 divisors (see below), whose sum is σ = 27099072. Its totient is φ = 6840000.

The previous prime is 13722239. The next prime is 13722277. The reversal of 13722272 is 27222731.

It is not an unprimeable number, because it can be changed into a prime (13722277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17897 + ... + 18647.

It is an arithmetic number, because the mean of its divisors is an integer number (1129128).

Almost surely, 2^13722272 is an apocalyptic number.

It is an amenable number.

13722272 is a deficient number, since it is larger than the sum of its proper divisors (13376800).

13722272 is an equidigital number, since it uses as much as digits as its factorization.

13722272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1324 counting only the distinct ones).

The product of its digits is 2352, while the sum is 26.

The square root of 13722272 is about 3704.3585139670. The cubic root of 13722272 is about 239.4098463134.

It can be divided in two parts, 1 and 3722272, that added together give a palindrome (3722273).

The spelling of 13722272 in words is "thirteen million, seven hundred twenty-two thousand, two hundred seventy-two".