12445722 has 48 divisors (see below), whose sum is σ = 28691520. Its totient is φ = 3888000.

The previous prime is 12445711. The next prime is 12445723. The reversal of 12445722 is 22754421.

It is a super-2 number, since 2×12445722² = 309791992202568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12445723) 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, 51522 + ... + 51762.

It is an arithmetic number, because the mean of its divisors is an integer number (597740).

Almost surely, 2^12445722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12445722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14345760).

12445722 is an abundant number, since it is smaller than the sum of its proper divisors (16245798).

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

12445722 is a wasteful number, since it uses less digits than its factorization.

12445722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 416 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12445722 is about 3527.8494865853. The cubic root of 12445722 is about 231.7430394184.

The spelling of 12445722 in words is "twelve million, four hundred forty-five thousand, seven hundred twenty-two".