13811472 has 50 divisors (see below), whose sum is σ = 39978158. Its totient is φ = 4603392.

The previous prime is 13811459. The next prime is 13811489. The reversal of 13811472 is 27411831.

13811472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8503056 + 5308416 = 2916^2 + 2304^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4033 + ... + 6624.

Almost surely, 2^13811472 is an apocalyptic number.

13811472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13811472 is an abundant number, since it is smaller than the sum of its proper divisors (26166686).

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

13811472 is a wasteful number, since it uses less digits than its factorization.

13811472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10677 (or 10662 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 13811472 is about 3716.3788827298. The cubic root of 13811472 is about 239.9274780879.

The spelling of 13811472 in words is "thirteen million, eight hundred eleven thousand, four hundred seventy-two".