22294839 has 16 divisors (see below), whose sum is σ = 34061312. Its totient is φ = 12706848.

The previous prime is 22294817. The next prime is 22294849. The reversal of 22294839 is 93849222.

It is a happy number.

It is not a de Polignac number, because 22294839 - 2²⁰ = 21246263 is a prime.

It is a Smith number, since the sum of its digits (39) 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 junction number, because it is equal to n+sod(n) for n = 22294797 and 22294806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22294849) 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, 8577 + ... + 10869.

It is an arithmetic number, because the mean of its divisors is an integer number (2128832).

Almost surely, 2^22294839 is an apocalyptic number.

22294839 is a deficient number, since it is larger than the sum of its proper divisors (11766473).

22294839 is a wasteful number, since it uses less digits than its factorization.

22294839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766.

The product of its digits is 62208, while the sum is 39.

The square root of 22294839 is about 4721.7410983662. The cubic root of 22294839 is about 281.4501256147.

The spelling of 22294839 in words is "twenty-two million, two hundred ninety-four thousand, eight hundred thirty-nine".