13204220 has 24 divisors (see below), whose sum is σ = 27815424. Its totient is φ = 5265216.

The previous prime is 13204211. The next prime is 13204237. The reversal of 13204220 is 2240231.

It is a junction number, because it is equal to n+sod(n) for n = 13204195 and 13204204.

It is a congruent number.

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, 7109 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (1158976).

Almost surely, 2^13204220 is an apocalyptic number.

13204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13204220 is an abundant number, since it is smaller than the sum of its proper divisors (14611204).

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

13204220 is a wasteful number, since it uses less digits than its factorization.

13204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 13204220 is about 3633.7611368938. The cubic root of 13204220 is about 236.3583324074.

Adding to 13204220 its reverse (2240231), we get a palindrome (15444451).

The spelling of 13204220 in words is "thirteen million, two hundred four thousand, two hundred twenty".