22742268 has 12 divisors (see below), whose sum is σ = 53065320. Its totient is φ = 7580752.

The previous prime is 22742197. The next prime is 22742273. The reversal of 22742268 is 86224722.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 947583 + ... + 947606.

It is an arithmetic number, because the mean of its divisors is an integer number (4422110).

Almost surely, 2^22742268 is an apocalyptic number.

It is an amenable number.

22742268 is an abundant number, since it is smaller than the sum of its proper divisors (30323052).

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

22742268 is a wasteful number, since it uses less digits than its factorization.

22742268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895196 (or 1895194 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 22742268 is about 4768.8854043686. The cubic root of 22742268 is about 283.3204509329.

The spelling of 22742268 in words is "twenty-two million, seven hundred forty-two thousand, two hundred sixty-eight".