22992768 has 64 divisors (see below), whose sum is σ = 67870800. Its totient is φ = 7663104.

The previous prime is 22992763. The next prime is 22992779. The reversal of 22992768 is 86729922.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22992763) 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 7 ways as a sum of consecutive naturals, for example, 130 + ... + 6782.

Almost surely, 2^22992768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22992768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33935400).

22992768 is an abundant number, since it is smaller than the sum of its proper divisors (44878032).

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

22992768 is an equidigital number, since it uses as much as digits as its factorization.

22992768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676 (or 6658 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 22992768 is about 4795.0774759121. The cubic root of 22992768 is about 284.3568878373.

The spelling of 22992768 in words is "twenty-two million, nine hundred ninety-two thousand, seven hundred sixty-eight".