22344779 has 4 divisors (see below), whose sum is σ = 23520840. Its totient is φ = 21168720.

The previous prime is 22344739. The next prime is 22344809. The reversal of 22344779 is 97744322.

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

It is a cyclic number.

It is not a de Polignac number, because 22344779 - 2²⁰ = 21296203 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22344709) 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, 588002 + ... + 588039.

It is an arithmetic number, because the mean of its divisors is an integer number (5880210).

Almost surely, 2^22344779 is an apocalyptic number.

22344779 is a deficient number, since it is larger than the sum of its proper divisors (1176061).

22344779 is a wasteful number, since it uses less digits than its factorization.

22344779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176060.

The product of its digits is 84672, while the sum is 38.

The square root of 22344779 is about 4727.0264437593. The cubic root of 22344779 is about 281.6601164791.

The spelling of 22344779 in words is "twenty-two million, three hundred forty-four thousand, seven hundred seventy-nine".