22272466 has 8 divisors (see below), whose sum is σ = 33464700. Its totient is φ = 11117568.

The previous prime is 22272457. The next prime is 22272473. The reversal of 22272466 is 66427222.

It can be written as a sum of positive squares in 2 ways, for example, as 22043025 + 229441 = 4695^2 + 479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 7791 + ... + 10258.

Almost surely, 2^22272466 is an apocalyptic number.

22272466 is a deficient number, since it is larger than the sum of its proper divisors (11192234).

22272466 is a wasteful number, since it uses less digits than its factorization.

22272466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18668.

The product of its digits is 16128, while the sum is 31.

The square root of 22272466 is about 4719.3713564414. The cubic root of 22272466 is about 281.3559484951.

Adding to 22272466 its reverse (66427222), we get a palindrome (88699688).

The spelling of 22272466 in words is "twenty-two million, two hundred seventy-two thousand, four hundred sixty-six".