22044313 has 4 divisors (see below), whose sum is σ = 23204560. Its totient is φ = 20884068.

The previous prime is 22044311. The next prime is 22044353. The reversal of 22044313 is 31344022.

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 22044313 - 2¹ = 22044311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1160227 = 22044313 / (2 + 2 + 0 + 4 + 4 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22044311) 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, 580095 + ... + 580132.

It is an arithmetic number, because the mean of its divisors is an integer number (5801140).

Almost surely, 2^22044313 is an apocalyptic number.

It is an amenable number.

22044313 is a deficient number, since it is larger than the sum of its proper divisors (1160247).

22044313 is a wasteful number, since it uses less digits than its factorization.

22044313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160246.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22044313 is about 4695.1371651955. The cubic root of 22044313 is about 280.3919383615.

Adding to 22044313 its reverse (31344022), we get a palindrome (53388335).

The spelling of 22044313 in words is "twenty-two million, forty-four thousand, three hundred thirteen".