13104020 has 48 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 4920960.

The previous prime is 13104019. The next prime is 13104037. The reversal of 13104020 is 2040131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13103992 and 13104010.

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, 27827 + ... + 28293.

It is an arithmetic number, because the mean of its divisors is an integer number (609336).

Almost surely, 2^13104020 is an apocalyptic number.

13104020 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 13104020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14624064).

13104020 is an abundant number, since it is smaller than the sum of its proper divisors (16144108).

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

13104020 is a wasteful number, since it uses less digits than its factorization.

13104020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13104020 is about 3619.9475134317. The cubic root of 13104020 is about 235.7589466296.

Adding to 13104020 its reverse (2040131), we get a palindrome (15144151).

The spelling of 13104020 in words is "thirteen million, one hundred four thousand, twenty".