12805370 has 8 divisors (see below), whose sum is σ = 23049684. Its totient is φ = 5122144.

The previous prime is 12805349. The next prime is 12805417. The reversal of 12805370 is 7350821.

It can be written as a sum of positive squares in 2 ways, for example, as 12271009 + 534361 = 3503^2 + 731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640259 + ... + 640278.

Almost surely, 2^12805370 is an apocalyptic number.

12805370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12805370 is a deficient number, since it is larger than the sum of its proper divisors (10244314).

12805370 is a wasteful number, since it uses less digits than its factorization.

12805370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280544.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12805370 is about 3578.4591656186. The cubic root of 12805370 is about 233.9541269319.

The spelling of 12805370 in words is "twelve million, eight hundred five thousand, three hundred seventy".