22266368 has 40 divisors (see below), whose sum is σ = 44934252. Its totient is φ = 11022336.

The previous prime is 22266367. The next prime is 22266371. The reversal of 22266368 is 86366222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20502784 + 1763584 = 4528^2 + 1328^2 .

It is a super-2 number, since 2×22266368² = 991582287822848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22266367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80246 + ... + 80522.

Almost surely, 2^22266368 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 22266368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22467126).

22266368 is an abundant number, since it is smaller than the sum of its proper divisors (22667884).

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

22266368 is an equidigital number, since it uses as much as digits as its factorization.

22266368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 436 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 22266368 is about 4718.7252515907. The cubic root of 22266368 is about 281.3302685789.

The spelling of 22266368 in words is "twenty-two million, two hundred sixty-six thousand, three hundred sixty-eight".