22164370 has 8 divisors (see below), whose sum is σ = 39895884. Its totient is φ = 8865744.

The previous prime is 22164367. The next prime is 22164371. The reversal of 22164370 is 7346122.

It can be written as a sum of positive squares in 2 ways, for example, as 18088009 + 4076361 = 4253^2 + 2019^2 .

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 (22164371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108209 + ... + 1108228.

Almost surely, 2^22164370 is an apocalyptic number.

22164370 is a deficient number, since it is larger than the sum of its proper divisors (17731514).

22164370 is a wasteful number, since it uses less digits than its factorization.

22164370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216444.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 22164370 is about 4707.9050542678. The cubic root of 22164370 is about 280.9000374755.

The spelling of 22164370 in words is "twenty-two million, one hundred sixty-four thousand, three hundred seventy".