22656730 has 16 divisors (see below), whose sum is σ = 41241960. Its totient is φ = 8960512.

The previous prime is 22656719. The next prime is 22656737. The reversal of 22656730 is 3765622.

It can be written as a sum of positive squares in 4 ways, for example, as 7733961 + 14922769 = 2781^2 + 3863^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22656692 and 22656701.

It is not an unprimeable number, because it can be changed into a prime (22656737) 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, 11839 + ... + 13618.

Almost surely, 2^22656730 is an apocalyptic number.

22656730 is a deficient number, since it is larger than the sum of its proper divisors (18585230).

22656730 is a wasteful number, since it uses less digits than its factorization.

22656730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25553.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 22656730 is about 4759.9086125681. The cubic root of 22656730 is about 282.9647972794.

The spelling of 22656730 in words is "twenty-two million, six hundred fifty-six thousand, seven hundred thirty".