22164045 has 16 divisors (see below), whose sum is σ = 36045312. Its totient is φ = 11626560.

The previous prime is 22164031. The next prime is 22164097. The reversal of 22164045 is 54046122.

It is not a de Polignac number, because 22164045 - 2⁴ = 22164029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11197 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (2252832).

Almost surely, 2^22164045 is an apocalyptic number.

It is an amenable number.

22164045 is a deficient number, since it is larger than the sum of its proper divisors (13881267).

22164045 is a wasteful number, since it uses less digits than its factorization.

22164045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24292.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22164045 is about 4707.8705377272. The cubic root of 22164045 is about 280.8986645068.

The spelling of 22164045 in words is "twenty-two million, one hundred sixty-four thousand, forty-five".