22985389 has 4 divisors (see below), whose sum is σ = 26269024. Its totient is φ = 19701756.

The previous prime is 22985387. The next prime is 22985401. The reversal of 22985389 is 98358922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22985389 - 2¹ = 22985387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22985381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641807 + ... + 1641820.

It is an arithmetic number, because the mean of its divisors is an integer number (6567256).

Almost surely, 2^22985389 is an apocalyptic number.

It is an amenable number.

22985389 is a deficient number, since it is larger than the sum of its proper divisors (3283635).

22985389 is an equidigital number, since it uses as much as digits as its factorization.

22985389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283634.

The product of its digits is 311040, while the sum is 46.

The square root of 22985389 is about 4794.3079792604. The cubic root of 22985389 is about 284.3264653152.

The spelling of 22985389 in words is "twenty-two million, nine hundred eighty-five thousand, three hundred eighty-nine".