13179220 has 12 divisors (see below), whose sum is σ = 27676404. Its totient is φ = 5271680.

The previous prime is 13179211. The next prime is 13179241. The reversal of 13179220 is 2297131.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 6646084 = 2556^2 + 2578^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329461 + ... + 329500.

It is an arithmetic number, because the mean of its divisors is an integer number (2306367).

Almost surely, 2^13179220 is an apocalyptic number.

13179220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13179220 is an abundant number, since it is smaller than the sum of its proper divisors (14497184).

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

13179220 is a wasteful number, since it uses less digits than its factorization.

13179220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658970 (or 658968 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 13179220 is about 3630.3195451640. The cubic root of 13179220 is about 236.2090697361.

The spelling of 13179220 in words is "thirteen million, one hundred seventy-nine thousand, two hundred twenty".