22493305 has 4 divisors (see below), whose sum is σ = 26991972. Its totient is φ = 17994640.

The previous prime is 22493281. The next prime is 22493309. The reversal of 22493305 is 50339422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14077504 + 8415801 = 3752^2 + 2901^2 .

It is not a de Polignac number, because 22493305 - 2²¹ = 20396153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22493309) 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, 2249326 + ... + 2249335.

It is an arithmetic number, because the mean of its divisors is an integer number (6747993).

Almost surely, 2^22493305 is an apocalyptic number.

It is an amenable number.

22493305 is a deficient number, since it is larger than the sum of its proper divisors (4498667).

22493305 is an equidigital number, since it uses as much as digits as its factorization.

22493305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498666.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 22493305 is about 4742.7107227829. The cubic root of 22493305 is about 282.2828048367.

The spelling of 22493305 in words is "twenty-two million, four hundred ninety-three thousand, three hundred five".