22294813 has 4 divisors (see below), whose sum is σ = 22353408. Its totient is φ = 22236220.

The previous prime is 22294801. The next prime is 22294817. The reversal of 22294813 is 31849222.

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 22294813 - 2¹⁷ = 22163741 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22294817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28723 + ... + 29488.

It is an arithmetic number, because the mean of its divisors is an integer number (5588352).

Almost surely, 2^22294813 is an apocalyptic number.

It is an amenable number.

22294813 is a deficient number, since it is larger than the sum of its proper divisors (58595).

22294813 is an equidigital number, since it uses as much as digits as its factorization.

22294813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58594.

The product of its digits is 6912, while the sum is 31.

The square root of 22294813 is about 4721.7383451437. The cubic root of 22294813 is about 281.4500162066.

The spelling of 22294813 in words is "twenty-two million, two hundred ninety-four thousand, eight hundred thirteen".