22351393 has 4 divisors (see below), whose sum is σ = 22468608. Its totient is φ = 22234180.

The previous prime is 22351387. The next prime is 22351397. The reversal of 22351393 is 39315322.

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 22351393 - 2⁵ = 22351361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22351397) 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, 58321 + ... + 58702.

It is an arithmetic number, because the mean of its divisors is an integer number (5617152).

Almost surely, 2^22351393 is an apocalyptic number.

It is an amenable number.

22351393 is a deficient number, since it is larger than the sum of its proper divisors (117215).

22351393 is a wasteful number, since it uses less digits than its factorization.

22351393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117214.

The product of its digits is 4860, while the sum is 28.

The square root of 22351393 is about 4727.7259861375. The cubic root of 22351393 is about 281.6879039731.

The spelling of 22351393 in words is "twenty-two million, three hundred fifty-one thousand, three hundred ninety-three".