22272158 has 4 divisors (see below), whose sum is σ = 33408240. Its totient is φ = 11136078.

The previous prime is 22272149. The next prime is 22272169. The reversal of 22272158 is 85127222.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22272158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5568038 + ... + 5568041.

It is an arithmetic number, because the mean of its divisors is an integer number (8352060).

Almost surely, 2^22272158 is an apocalyptic number.

22272158 is a deficient number, since it is larger than the sum of its proper divisors (11136082).

22272158 is a wasteful number, since it uses less digits than its factorization.

22272158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11136081.

The product of its digits is 4480, while the sum is 29.

The square root of 22272158 is about 4719.3387248639. The cubic root of 22272158 is about 281.3546515570.

The spelling of 22272158 in words is "twenty-two million, two hundred seventy-two thousand, one hundred fifty-eight".