13481724 has 12 divisors (see below), whose sum is σ = 31457384. Its totient is φ = 4493904.

The previous prime is 13481719. The next prime is 13481729. The reversal of 13481724 is 42718431.

It is an interprime number because it is at equal distance from previous prime (13481719) and next prime (13481729).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13481691 and 13481700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13481729) 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, 561727 + ... + 561750.

Almost surely, 2^13481724 is an apocalyptic number.

It is an amenable number.

13481724 is an abundant number, since it is smaller than the sum of its proper divisors (17975660).

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

13481724 is a wasteful number, since it uses less digits than its factorization.

13481724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123484 (or 1123482 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 13481724 is about 3671.7467232912. The cubic root of 13481724 is about 238.0026598578.

The spelling of 13481724 in words is "thirteen million, four hundred eighty-one thousand, seven hundred twenty-four".