13487224 has 16 divisors (see below), whose sum is σ = 25522200. Its totient is φ = 6681312.

The previous prime is 13487213. The next prime is 13487249. The reversal of 13487224 is 42278431.

It is a super-2 number, since 2×13487224² = 363810422452352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6862 + ... + 8605.

Almost surely, 2^13487224 is an apocalyptic number.

It is an amenable number.

13487224 is a deficient number, since it is larger than the sum of its proper divisors (12034976).

13487224 is a wasteful number, since it uses less digits than its factorization.

13487224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15582 (or 15578 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 13487224 is about 3672.4956092554. The cubic root of 13487224 is about 238.0350206216.

The spelling of 13487224 in words is "thirteen million, four hundred eighty-seven thousand, two hundred twenty-four".