12859220 has 24 divisors (see below), whose sum is σ = 29459808. Its totient is φ = 4676000.

The previous prime is 12859211. The next prime is 12859229. The reversal of 12859220 is 2295821.

It is an interprime number because it is at equal distance from previous prime (12859211) and next prime (12859229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12859229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29006 + ... + 29445.

It is an arithmetic number, because the mean of its divisors is an integer number (1227492).

Almost surely, 2^12859220 is an apocalyptic number.

12859220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12859220 is an abundant number, since it is smaller than the sum of its proper divisors (16600588).

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

12859220 is a wasteful number, since it uses less digits than its factorization.

12859220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58471 (or 58469 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12859220 is about 3585.9754600387. The cubic root of 12859220 is about 234.2816148259.

The spelling of 12859220 in words is "twelve million, eight hundred fifty-nine thousand, two hundred twenty".