13213424 has 20 divisors (see below), whose sum is σ = 29258544. Its totient is φ = 5662848.

The previous prime is 13213423. The next prime is 13213441. The reversal of 13213424 is 42431231.

It is a junction number, because it is equal to n+sod(n) for n = 13213396 and 13213405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213423) by changing a digit.

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, 58877 + ... + 59100.

Almost surely, 2^13213424 is an apocalyptic number.

13213424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13213424 is an abundant number, since it is smaller than the sum of its proper divisors (16045120).

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

13213424 is a wasteful number, since it uses less digits than its factorization.

13213424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117992 (or 117986 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 13213424 is about 3635.0273726617. The cubic root of 13213424 is about 236.4132375015.

Adding to 13213424 its reverse (42431231), we get a palindrome (55644655).

The spelling of 13213424 in words is "thirteen million, two hundred thirteen thousand, four hundred twenty-four".