22730443 has 4 divisors (see below), whose sum is σ = 22740568. Its totient is φ = 22720320.

The previous prime is 22730431. The next prime is 22730467. The reversal of 22730443 is 34403722.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22730443 is a prime.

It is a super-4 number, since 4×22730443⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22730423) 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, 21 + ... + 6742.

It is an arithmetic number, because the mean of its divisors is an integer number (5685142).

Almost surely, 2^22730443 is an apocalyptic number.

22730443 is a deficient number, since it is larger than the sum of its proper divisors (10125).

22730443 is an equidigital number, since it uses as much as digits as its factorization.

22730443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10124.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 22730443 is about 4767.6454356422. The cubic root of 22730443 is about 283.2713376084.

The spelling of 22730443 in words is "twenty-two million, seven hundred thirty thousand, four hundred forty-three".