12914220 has 96 divisors (see below), whose sum is σ = 41803776. Its totient is φ = 2944000.

The previous prime is 12914207. The next prime is 12914267. The reversal of 12914220 is 2241921.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10645 + ... + 11795.

It is an arithmetic number, because the mean of its divisors is an integer number (435456).

Almost surely, 2^12914220 is an apocalyptic number.

12914220 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 12914220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20901888).

12914220 is an abundant number, since it is smaller than the sum of its proper divisors (28889556).

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

12914220 is a wasteful number, since it uses less digits than its factorization.

12914220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12914220 is about 3593.6360416714. The cubic root of 12914220 is about 234.6151540182.

The spelling of 12914220 in words is "twelve million, nine hundred fourteen thousand, two hundred twenty".