22038313 has 4 divisors (see below), whose sum is σ = 24041808. Its totient is φ = 20034820.

The previous prime is 22038287. The next prime is 22038319. The reversal of 22038313 is 31383022.

It is a happy number.

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 22038313 - 2⁵ = 22038281 is a prime.

It is a Smith number, since the sum of its digits (22) 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 not an unprimeable number, because it can be changed into a prime (22038319) 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, 1001731 + ... + 1001752.

It is an arithmetic number, because the mean of its divisors is an integer number (6010452).

Almost surely, 2^22038313 is an apocalyptic number.

It is an amenable number.

22038313 is a deficient number, since it is larger than the sum of its proper divisors (2003495).

22038313 is a wasteful number, since it uses less digits than its factorization.

22038313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003494.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22038313 is about 4694.4981627433. The cubic root of 22038313 is about 280.3664971167.

The spelling of 22038313 in words is "twenty-two million, thirty-eight thousand, three hundred thirteen".