224001443 has 4 divisors (see below), whose sum is σ = 231227328. Its totient is φ = 216775560.

The previous prime is 224001433. The next prime is 224001473. The reversal of 224001443 is 344100422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344100422 = 2 ⋅172050211.

It is not a de Polignac number, because 224001443 - 2²² = 219807139 is a prime.

It is a Duffinian number.

224001443 is a modest number, since divided by 1443 gives 224 as remainder.

It is not an unprimeable number, because it can be changed into a prime (224001433) 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, 3612896 + ... + 3612957.

It is an arithmetic number, because the mean of its divisors is an integer number (57806832).

Almost surely, 2^224001443 is an apocalyptic number.

224001443 is a deficient number, since it is larger than the sum of its proper divisors (7225885).

224001443 is an equidigital number, since it uses as much as digits as its factorization.

224001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225884.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 224001443 is about 14966.6777542646. The cubic root of 224001443 is about 607.3190984788.

Adding to 224001443 its reverse (344100422), we get a palindrome (568101865).

The spelling of 224001443 in words is "two hundred twenty-four million, one thousand, four hundred forty-three".