22028170 has 8 divisors (see below), whose sum is σ = 39650724. Its totient is φ = 8811264.

The previous prime is 22028161. The next prime is 22028173. The reversal of 22028170 is 7182022.

It can be written as a sum of positive squares in 2 ways, for example, as 20802721 + 1225449 = 4561^2 + 1107^2 .

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 (22028173) 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, 1101399 + ... + 1101418.

Almost surely, 2^22028170 is an apocalyptic number.

22028170 is a deficient number, since it is larger than the sum of its proper divisors (17622554).

22028170 is a wasteful number, since it uses less digits than its factorization.

22028170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202824.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 22028170 is about 4693.4177312487. The cubic root of 22028170 is about 280.3234781893.

The spelling of 22028170 in words is "twenty-two million, twenty-eight thousand, one hundred seventy".