13204920 has 64 divisors (see below), whose sum is σ = 41951520. Its totient is φ = 3313664.

The previous prime is 13204907. The next prime is 13204949. The reversal of 13204920 is 2940231.

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, 1197 + ... + 5276.

Almost surely, 2^13204920 is an apocalyptic number.

13204920 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 13204920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20975760).

13204920 is an abundant number, since it is smaller than the sum of its proper divisors (28746600).

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

13204920 is a wasteful number, since it uses less digits than its factorization.

13204920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504 (or 6500 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13204920 is about 3633.8574545516. The cubic root of 13204920 is about 236.3625090497.

The spelling of 13204920 in words is "thirteen million, two hundred four thousand, nine hundred twenty".