22043268 has 144 divisors (see below), whose sum is σ = 65840320. Its totient is φ = 6158592.

The previous prime is 22043267. The next prime is 22043279. The reversal of 22043268 is 86234022.

22043268 is a `hidden beast` number, since 220 + 432 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328971 + ... + 329037.

Almost surely, 2^22043268 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 22043268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32920160).

22043268 is an abundant number, since it is smaller than the sum of its proper divisors (43797052).

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

22043268 is a wasteful number, since it uses less digits than its factorization.

22043268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 22043268 is about 4695.0258785229. The cubic root of 22043268 is about 280.3875076767.

The spelling of 22043268 in words is "twenty-two million, forty-three thousand, two hundred sixty-eight".