22689320 has 32 divisors (see below), whose sum is σ = 51294600. Its totient is φ = 9032448.

The previous prime is 22689319. The next prime is 22689323. The reversal of 22689320 is 2398622.

It can be written as a sum of positive squares in 4 ways, for example, as 21771556 + 917764 = 4666^2 + 958^2 .

It is not an unprimeable number, because it can be changed into a prime (22689323) by changing a digit.

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, 7922 + ... + 10398.

Almost surely, 2^22689320 is an apocalyptic number.

22689320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22689320 is an abundant number, since it is smaller than the sum of its proper divisors (28605280).

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

22689320 is a wasteful number, since it uses less digits than its factorization.

22689320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717 (or 2713 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22689320 is about 4763.3307674357. The cubic root of 22689320 is about 283.1004067965.

The spelling of 22689320 in words is "twenty-two million, six hundred eighty-nine thousand, three hundred twenty".