13234520 has 64 divisors (see below), whose sum is σ = 33143040. Its totient is φ = 4723200.

The previous prime is 13234511. The next prime is 13234541. The reversal of 13234520 is 2543231.

It is a happy number.

13234520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13234492 and 13234501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15710 + ... + 16530.

It is an arithmetic number, because the mean of its divisors is an integer number (517860).

Almost surely, 2^13234520 is an apocalyptic number.

13234520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13234520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16571520).

13234520 is an abundant number, since it is smaller than the sum of its proper divisors (19908520).

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

13234520 is a wasteful number, since it uses less digits than its factorization.

13234520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13234520 is about 3637.9279816951. The cubic root of 13234520 is about 236.5389864318.

Adding to 13234520 its reverse (2543231), we get a palindrome (15777751).

The spelling of 13234520 in words is "thirteen million, two hundred thirty-four thousand, five hundred twenty".