22689730 has 64 divisors (see below), whose sum is σ = 51632640. Its totient is φ = 6994944.

The previous prime is 22689727. The next prime is 22689731. The reversal of 22689730 is 3798622.

It is a self number, because there is not a number n which added to its sum of digits gives 22689730.

It is not an unprimeable number, because it can be changed into a prime (22689731) 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 in 31 ways as a sum of consecutive naturals, for example, 26956 + ... + 27784.

It is an arithmetic number, because the mean of its divisors is an integer number (806760).

Almost surely, 2^22689730 is an apocalyptic number.

22689730 is an abundant number, since it is smaller than the sum of its proper divisors (28942910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22689730 is a wasteful number, since it uses less digits than its factorization.

22689730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 22689730 is about 4763.3738043534. The cubic root of 22689730 is about 283.1021120109.

The spelling of 22689730 in words is "twenty-two million, six hundred eighty-nine thousand, seven hundred thirty".