13415424 has 88 divisors (see below), whose sum is σ = 39105888. Its totient is φ = 4055040.

The previous prime is 13415411. The next prime is 13415447. The reversal of 13415424 is 42451431.

It is a tau number, because it is divible by the number of its divisors (88).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13415394 and 13415403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33594 + ... + 33990.

Almost surely, 2^13415424 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 13415424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19552944).

13415424 is an abundant number, since it is smaller than the sum of its proper divisors (25690464).

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

13415424 is a wasteful number, since it uses less digits than its factorization.

13415424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 413 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 13415424 is about 3662.7071955044. The cubic root of 13415424 is about 237.6118712113.

Adding to 13415424 its reverse (42451431), we get a palindrome (55866855).

The spelling of 13415424 in words is "thirteen million, four hundred fifteen thousand, four hundred twenty-four".