12805722 has 16 divisors (see below), whose sum is σ = 28457280. Its totient is φ = 4268556.

The previous prime is 12805721. The next prime is 12805729. The reversal of 12805722 is 22750821.

12805722 is a `hidden beast` number, since 12 + 80 + 572 + 2 = 666.

12805722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12805721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118518 + ... + 118625.

It is an arithmetic number, because the mean of its divisors is an integer number (1778580).

Almost surely, 2^12805722 is an apocalyptic number.

12805722 is an abundant number, since it is smaller than the sum of its proper divisors (15651558).

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

12805722 is a wasteful number, since it uses less digits than its factorization.

12805722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237154 (or 237148 counting only the distinct ones).

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

The square root of 12805722 is about 3578.5083484603. The cubic root of 12805722 is about 233.9562705924.

The spelling of 12805722 in words is "twelve million, eight hundred five thousand, seven hundred twenty-two".