22992288 has 48 divisors (see below), whose sum is σ = 65844576. Its totient is φ = 6967040.

The previous prime is 22992271. The next prime is 22992293. The reversal of 22992288 is 88229922.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-4 number, since 4×22992288⁴ (a number of 31 digits) contains 4444 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

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, 9831 + ... + 11942.

It is an arithmetic number, because the mean of its divisors is an integer number (1371762).

Almost surely, 2^22992288 is an apocalyptic number.

It is an amenable number.

22992288 is an abundant number, since it is smaller than the sum of its proper divisors (42852288).

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

22992288 is a wasteful number, since it uses less digits than its factorization.

22992288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21797 (or 21789 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 22992288 is about 4795.0274243220. The cubic root of 22992288 is about 284.3549090665.

The spelling of 22992288 in words is "twenty-two million, nine hundred ninety-two thousand, two hundred eighty-eight".