22394443 has 8 divisors (see below), whose sum is σ = 23020976. Its totient is φ = 21772800.

The previous prime is 22394441. The next prime is 22394497. The reversal of 22394443 is 34449322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22394443 - 2¹ = 22394441 is a prime.

It is a super-2 number, since 2×22394443² = 1003022154560498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22394441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9283 + ... + 11443.

It is an arithmetic number, because the mean of its divisors is an integer number (2877622).

Almost surely, 2^22394443 is an apocalyptic number.

22394443 is a deficient number, since it is larger than the sum of its proper divisors (626533).

22394443 is a wasteful number, since it uses less digits than its factorization.

22394443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445.

The product of its digits is 20736, while the sum is 31.

The square root of 22394443 is about 4732.2767247911. The cubic root of 22394443 is about 281.8686367362.

The spelling of 22394443 in words is "twenty-two million, three hundred ninety-four thousand, four hundred forty-three".