22170946 has 16 divisors (see below), whose sum is σ = 38074176. Its totient is φ = 9485136.

The previous prime is 22170943. The next prime is 22170947. The reversal of 22170946 is 64907122.

It is not an unprimeable number, because it can be changed into a prime (22170943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10165 + ... + 12151.

It is an arithmetic number, because the mean of its divisors is an integer number (2379636).

Almost surely, 2^22170946 is an apocalyptic number.

22170946 is a deficient number, since it is larger than the sum of its proper divisors (15903230).

22170946 is a wasteful number, since it uses less digits than its factorization.

22170946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22170946 is about 4708.6034022840. The cubic root of 22170946 is about 280.9278150301.

The spelling of 22170946 in words is "twenty-two million, one hundred seventy thousand, nine hundred forty-six".