22685385 has 16 divisors (see below), whose sum is σ = 36357696. Its totient is φ = 12078528.

The previous prime is 22685363. The next prime is 22685387. The reversal of 22685385 is 58358622.

It is not a de Polignac number, because 22685385 - 2⁶ = 22685321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22685387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13407 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (2272356).

Almost surely, 2^22685385 is an apocalyptic number.

It is an amenable number.

22685385 is a deficient number, since it is larger than the sum of its proper divisors (13672311).

22685385 is a wasteful number, since it uses less digits than its factorization.

22685385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552.

The product of its digits is 115200, while the sum is 39.

The square root of 22685385 is about 4762.9176982182. The cubic root of 22685385 is about 283.0840398522.

The spelling of 22685385 in words is "twenty-two million, six hundred eighty-five thousand, three hundred eighty-five".