12959220 has 48 divisors (see below), whose sum is σ = 36465408. Its totient is φ = 3438720.

The previous prime is 12959183. The next prime is 12959231. The reversal of 12959220 is 2295921.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 15862 + ... + 16658.

It is an arithmetic number, because the mean of its divisors is an integer number (759696).

Almost surely, 2^12959220 is an apocalyptic number.

12959220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12959220 is an abundant number, since it is smaller than the sum of its proper divisors (23506188).

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

12959220 is a wasteful number, since it uses less digits than its factorization.

12959220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12959220 is about 3599.8916650366. The cubic root of 12959220 is about 234.8873460349.

The spelling of 12959220 in words is "twelve million, nine hundred fifty-nine thousand, two hundred twenty".