22047443 has 4 divisors (see below), whose sum is σ = 24051768. Its totient is φ = 20043120.

The previous prime is 22047439. The next prime is 22047451. The reversal of 22047443 is 34474022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22047443 - 2² = 22047439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22047343) 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, 1002146 + ... + 1002167.

It is an arithmetic number, because the mean of its divisors is an integer number (6012942).

Almost surely, 2^22047443 is an apocalyptic number.

22047443 is a deficient number, since it is larger than the sum of its proper divisors (2004325).

22047443 is a wasteful number, since it uses less digits than its factorization.

22047443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004324.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 22047443 is about 4695.4704769597. The cubic root of 22047443 is about 280.4052083786.

The spelling of 22047443 in words is "twenty-two million, forty-seven thousand, four hundred forty-three".