13320504 has 64 divisors (see below), whose sum is σ = 37497600. Its totient is φ = 4380768.

The previous prime is 13320493. The next prime is 13320521. The reversal of 13320504 is 40502331.

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

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, 17557 + ... + 18299.

It is an arithmetic number, because the mean of its divisors is an integer number (585900).

Almost surely, 2^13320504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13320504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18748800).

13320504 is an abundant number, since it is smaller than the sum of its proper divisors (24177096).

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

13320504 is a wasteful number, since it uses less digits than its factorization.

13320504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13320504 is about 3649.7265651005. The cubic root of 13320504 is about 237.0501416101.

Adding to 13320504 its reverse (40502331), we get a palindrome (53822835).

It can be divided in two parts, 13320 and 504, that added together give a cube (13824 = 24³).

The spelling of 13320504 in words is "thirteen million, three hundred twenty thousand, five hundred four".