22730264 has 8 divisors (see below), whose sum is σ = 42619260. Its totient is φ = 11365128.

The previous prime is 22730261. The next prime is 22730293. The reversal of 22730264 is 46203722.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22730261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1420634 + ... + 1420649.

Almost surely, 2^22730264 is an apocalyptic number.

It is an amenable number.

22730264 is a deficient number, since it is larger than the sum of its proper divisors (19888996).

22730264 is a wasteful number, since it uses less digits than its factorization.

22730264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841289 (or 2841285 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22730264 is about 4767.6266632361. The cubic root of 22730264 is about 283.2705940285.

Adding to 22730264 its reverse (46203722), we get a palindrome (68933986).

The spelling of 22730264 in words is "twenty-two million, seven hundred thirty thousand, two hundred sixty-four".