13520324 has 24 divisors (see below), whose sum is σ = 25519200. Its totient is φ = 6246720.

The previous prime is 13520303. The next prime is 13520333. The reversal of 13520324 is 42302531.

It is a happy number.

13520324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13520324² = 365598322129952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13520296 and 13520305.

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, 947 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1063300).

Almost surely, 2^13520324 is an apocalyptic number.

It is an amenable number.

13520324 is a deficient number, since it is larger than the sum of its proper divisors (11998876).

13520324 is a wasteful number, since it uses less digits than its factorization.

13520324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403 (or 4401 counting only the distinct ones).

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

The square root of 13520324 is about 3676.9993200978. Note that the first 3 decimals coincide. The cubic root of 13520324 is about 238.2295880263.

Adding to 13520324 its reverse (42302531), we get a palindrome (55822855).

The spelling of 13520324 in words is "thirteen million, five hundred twenty thousand, three hundred twenty-four".