22016385 has 24 divisors (see below), whose sum is σ = 39095784. Its totient is φ = 11454720.

The previous prime is 22016363. The next prime is 22016399. The reversal of 22016385 is 58361022.

22016385 is a `hidden beast` number, since 2 + 20 + 1 + 638 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1140624 + 20875761 = 1068^2 + 4569^2 .

It is not a de Polignac number, because 22016385 - 2⁶ = 22016321 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4122 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (1628991).

Almost surely, 2^22016385 is an apocalyptic number.

It is an amenable number.

22016385 is a deficient number, since it is larger than the sum of its proper divisors (17079399).

22016385 is a wasteful number, since it uses less digits than its factorization.

22016385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11985 (or 11982 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 22016385 is about 4692.1620815995. The cubic root of 22016385 is about 280.2734785523.

The spelling of 22016385 in words is "twenty-two million, sixteen thousand, three hundred eighty-five".