22271738 has 8 divisors (see below), whose sum is σ = 33906432. Its totient is φ = 10969596.

The previous prime is 22271731. The next prime is 22271761. The reversal of 22271738 is 83717222.

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

It is not an unprimeable number, because it can be changed into a prime (22271731) 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, 82970 + ... + 83237.

It is an arithmetic number, because the mean of its divisors is an integer number (4238304).

Almost surely, 2^22271738 is an apocalyptic number.

22271738 is a deficient number, since it is larger than the sum of its proper divisors (11634694).

22271738 is a wasteful number, since it uses less digits than its factorization.

22271738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166276.

The product of its digits is 9408, while the sum is 32.

The square root of 22271738 is about 4719.2942268945. The cubic root of 22271738 is about 281.3528829857.

The spelling of 22271738 in words is "twenty-two million, two hundred seventy-one thousand, seven hundred thirty-eight".