22726730 has 16 divisors (see below), whose sum is σ = 44055144. Its totient is φ = 8391360.

The previous prime is 22726729. The next prime is 22726763. The reversal of 22726730 is 3762722.

It can be written as a sum of positive squares in 4 ways, for example, as 6235009 + 16491721 = 2497^2 + 4061^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22726693 and 22726702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87281 + ... + 87540.

Almost surely, 2^22726730 is an apocalyptic number.

22726730 is a deficient number, since it is larger than the sum of its proper divisors (21328414).

22726730 is a wasteful number, since it uses less digits than its factorization.

22726730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174841.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 22726730 is about 4767.2560241716. The cubic root of 22726730 is about 283.2559127184.

The spelling of 22726730 in words is "twenty-two million, seven hundred twenty-six thousand, seven hundred thirty".