12859390 has 32 divisors (see below), whose sum is σ = 24844320. Its totient is φ = 4777344.

The previous prime is 12859381. The next prime is 12859411. The reversal of 12859390 is 9395821.

It is a super-2 number, since 2×12859390² = 330727822344200, which contains 22 as substring.

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, 9432 + ... + 10708.

It is an arithmetic number, because the mean of its divisors is an integer number (776385).

Almost surely, 2^12859390 is an apocalyptic number.

12859390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12859390 is a deficient number, since it is larger than the sum of its proper divisors (11984930).

12859390 is a wasteful number, since it uses less digits than its factorization.

12859390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 12859390 is about 3585.9991634132. Note that the first 3 decimals coincide. The cubic root of 12859390 is about 234.2826472290.

The spelling of 12859390 in words is "twelve million, eight hundred fifty-nine thousand, three hundred ninety".