22656736 has 12 divisors (see below), whose sum is σ = 44605512. Its totient is φ = 11328352.

The previous prime is 22656719. The next prime is 22656737. The reversal of 22656736 is 63765622.

It is a junction number, because it is equal to n+sod(n) for n = 22656695 and 22656704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22656737) 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 as a sum of consecutive naturals, namely, 353980 + ... + 354043.

It is an arithmetic number, because the mean of its divisors is an integer number (3717126).

Almost surely, 2^22656736 is an apocalyptic number.

It is an amenable number.

22656736 is a deficient number, since it is larger than the sum of its proper divisors (21948776).

22656736 is an equidigital number, since it uses as much as digits as its factorization.

22656736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708033 (or 708025 counting only the distinct ones).

The product of its digits is 90720, while the sum is 37.

The square root of 22656736 is about 4759.9092428323. The cubic root of 22656736 is about 282.9648222579.

The spelling of 22656736 in words is "twenty-two million, six hundred fifty-six thousand, seven hundred thirty-six".