13287424 has 30 divisors (see below), whose sum is σ = 26606804. Its totient is φ = 6635520.

The previous prime is 13287397. The next prime is 13287451. The reversal of 13287424 is 42478231.

It is an interprime number because it is at equal distance from previous prime (13287397) and next prime (13287451).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15979 + ... + 16789.

Almost surely, 2^13287424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13287424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13303402).

13287424 is an abundant number, since it is smaller than the sum of its proper divisors (13319380).

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

13287424 is an frugal number, since it uses more digits than its factorization.

13287424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 813 counting only the distinct ones).

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

The square root of 13287424 is about 3645.1919016699. The cubic root of 13287424 is about 236.8537496688.

The spelling of 13287424 in words is "thirteen million, two hundred eighty-seven thousand, four hundred twenty-four".