12859290 has 64 divisors (see below), whose sum is σ = 34715520. Its totient is φ = 3386880.

The previous prime is 12859289. The next prime is 12859303. The reversal of 12859290 is 9295821.

12859290 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12859290² = 330722678608200, which contains 22 as substring.

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, 25945 + ... + 26435.

It is an arithmetic number, because the mean of its divisors is an integer number (542430).

Almost surely, 2^12859290 is an apocalyptic number.

12859290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12859290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17357760).

12859290 is an abundant number, since it is smaller than the sum of its proper divisors (21856230).

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

12859290 is a wasteful number, since it uses less digits than its factorization.

12859290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12859290 is about 3585.9852202707. The cubic root of 12859290 is about 234.2820399342.

The spelling of 12859290 in words is "twelve million, eight hundred fifty-nine thousand, two hundred ninety".