12805470 has 48 divisors (see below), whose sum is σ = 33482592. Its totient is φ = 3395520.

The previous prime is 12805469. The next prime is 12805477. The reversal of 12805470 is 7450821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12805477) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 23400 + ... + 23940.

It is an arithmetic number, because the mean of its divisors is an integer number (697554).

Almost surely, 2^12805470 is an apocalyptic number.

12805470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12805470 is an abundant number, since it is smaller than the sum of its proper divisors (20677122).

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

12805470 is a wasteful number, since it uses less digits than its factorization.

12805470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12805470 is about 3578.4731380856. The cubic root of 12805470 is about 233.9547359304.

The spelling of 12805470 in words is "twelve million, eight hundred five thousand, four hundred seventy".