22272468 has 12 divisors (see below), whose sum is σ = 51969120. Its totient is φ = 7424152.

The previous prime is 22272457. The next prime is 22272473. The reversal of 22272468 is 86427222.

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

It is a super-2 number, since 2×22272468² = 992125661622048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928008 + ... + 928031.

It is an arithmetic number, because the mean of its divisors is an integer number (4330760).

Almost surely, 2^22272468 is an apocalyptic number.

It is an amenable number.

22272468 is an abundant number, since it is smaller than the sum of its proper divisors (29696652).

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

22272468 is a wasteful number, since it uses less digits than its factorization.

22272468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856046 (or 1856044 counting only the distinct ones).

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

The square root of 22272468 is about 4719.3715683341. The cubic root of 22272468 is about 281.3559569167.

The spelling of 22272468 in words is "twenty-two million, two hundred seventy-two thousand, four hundred sixty-eight".