22726394 has 12 divisors (see below), whose sum is σ = 35979354. Its totient is φ = 10764792.

The previous prime is 22726393. The next prime is 22726409. The reversal of 22726394 is 49362722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17952169 + 4774225 = 4237^2 + 2185^2 .

It is not an unprimeable number, because it can be changed into a prime (22726393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15017 + ... + 16460.

Almost surely, 2^22726394 is an apocalyptic number.

22726394 is a deficient number, since it is larger than the sum of its proper divisors (13252960).

22726394 is a wasteful number, since it uses less digits than its factorization.

22726394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31517 (or 31498 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 22726394 is about 4767.2207836432. The cubic root of 22726394 is about 283.2545167930.

The spelling of 22726394 in words is "twenty-two million, seven hundred twenty-six thousand, three hundred ninety-four".