22273443 has 6 divisors (see below), whose sum is σ = 32172764. Its totient is φ = 14848956.

The previous prime is 22273439. The next prime is 22273483. The reversal of 22273443 is 34437222.

It is not a de Polignac number, because 22273443 - 2² = 22273439 is a prime.

It is a super-2 number, since 2×22273443² = 992212526148498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22273403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1237405 + ... + 1237422.

Almost surely, 2^22273443 is an apocalyptic number.

22273443 is a deficient number, since it is larger than the sum of its proper divisors (9899321).

22273443 is a wasteful number, since it uses less digits than its factorization.

22273443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474833 (or 2474830 counting only the distinct ones).

The product of its digits is 8064, while the sum is 27.

The square root of 22273443 is about 4719.4748648552. The cubic root of 22273443 is about 281.3600624048.

The spelling of 22273443 in words is "twenty-two million, two hundred seventy-three thousand, four hundred forty-three".