13412520 has 128 divisors (see below), whose sum is σ = 48816000. Its totient is φ = 3248640.

The previous prime is 13412513. The next prime is 13412521. The reversal of 13412520 is 2521431.

13412520 is a `hidden beast` number, since 134 + 12 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13412493 and 13412502.

It is not an unprimeable number, because it can be changed into a prime (13412521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11316 + ... + 12444.

It is an arithmetic number, because the mean of its divisors is an integer number (381375).

Almost surely, 2^13412520 is an apocalyptic number.

13412520 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 13412520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24408000).

13412520 is an abundant number, since it is smaller than the sum of its proper divisors (35403480).

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

13412520 is a wasteful number, since it uses less digits than its factorization.

13412520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13412520 is about 3662.3107459635. The cubic root of 13412520 is about 237.5947249109.

Adding to 13412520 its reverse (2521431), we get a palindrome (15933951).

The spelling of 13412520 in words is "thirteen million, four hundred twelve thousand, five hundred twenty".