22910345 has 4 divisors (see below), whose sum is σ = 27492420. Its totient is φ = 18328272.

The previous prime is 22910341. The next prime is 22910347. The reversal of 22910345 is 54301922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54301922 = 2 ⋅27150961.

It can be written as a sum of positive squares in 2 ways, for example, as 17397241 + 5513104 = 4171^2 + 2348^2 .

It is a cyclic number.

It is not a de Polignac number, because 22910345 - 2² = 22910341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22910341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2291030 + ... + 2291039.

It is an arithmetic number, because the mean of its divisors is an integer number (6873105).

Almost surely, 2^22910345 is an apocalyptic number.

It is an amenable number.

22910345 is a deficient number, since it is larger than the sum of its proper divisors (4582075).

22910345 is an equidigital number, since it uses as much as digits as its factorization.

22910345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582074.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 22910345 is about 4786.4752166913. The cubic root of 22910345 is about 284.0166995735.

The spelling of 22910345 in words is "twenty-two million, nine hundred ten thousand, three hundred forty-five".