22240443 has 16 divisors (see below), whose sum is σ = 30463776. Its totient is φ = 14426880.

The previous prime is 22240433. The next prime is 22240457. The reversal of 22240443 is 34404222.

It is not a de Polignac number, because 22240443 - 2²² = 18046139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22240433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21273 + ... + 22293.

It is an arithmetic number, because the mean of its divisors is an integer number (1903986).

Almost surely, 2^22240443 is an apocalyptic number.

22240443 is a deficient number, since it is larger than the sum of its proper divisors (8223333).

22240443 is a wasteful number, since it uses less digits than its factorization.

22240443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 22240443 is about 4715.9774172487. The cubic root of 22240443 is about 281.2210407714.

Adding to 22240443 its reverse (34404222), we get a palindrome (56644665).

The spelling of 22240443 in words is "twenty-two million, two hundred forty thousand, four hundred forty-three".