13424520 has 32 divisors (see below), whose sum is σ = 40273920. Its totient is φ = 3579840.

The previous prime is 13424491. The next prime is 13424539. The reversal of 13424520 is 2542431.

13424520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 55816 + ... + 56055.

It is an arithmetic number, because the mean of its divisors is an integer number (1258560).

Almost surely, 2^13424520 is an apocalyptic number.

13424520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13424520 is an abundant number, since it is smaller than the sum of its proper divisors (26849400).

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

13424520 is a wasteful number, since it uses less digits than its factorization.

13424520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111885 (or 111881 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13424520 is about 3663.9486895971. The cubic root of 13424520 is about 237.6655613839.

Adding to 13424520 its reverse (2542431), we get a palindrome (15966951).

The spelling of 13424520 in words is "thirteen million, four hundred twenty-four thousand, five hundred twenty".