22910385 has 16 divisors (see below), whose sum is σ = 37437696. Its totient is φ = 11958528.

The previous prime is 22910353. The next prime is 22910387. The reversal of 22910385 is 58301922.

It is a happy number.

It is not a de Polignac number, because 22910385 - 2⁵ = 22910353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22910387) 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, 15544 + ... + 16953.

It is an arithmetic number, because the mean of its divisors is an integer number (2339856).

Almost surely, 2^22910385 is an apocalyptic number.

It is an amenable number.

22910385 is a deficient number, since it is larger than the sum of its proper divisors (14527311).

22910385 is a wasteful number, since it uses less digits than its factorization.

22910385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32552.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22910385 is about 4786.4793951296. The cubic root of 22910385 is about 284.0168648650.

The spelling of 22910385 in words is "twenty-two million, nine hundred ten thousand, three hundred eighty-five".