444142223 has 12 divisors (see below), whose sum is σ = 517049280. Its totient is φ = 380403072.

The previous prime is 444142219. The next prime is 444142247. The reversal of 444142223 is 322241444.

It is a happy number.

It is not a de Polignac number, because 444142223 - 2² = 444142219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444142192 and 444142201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444142253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83615 + ... + 88767.

It is an arithmetic number, because the mean of its divisors is an integer number (43087440).

Almost surely, 2^444142223 is an apocalyptic number.

444142223 is a deficient number, since it is larger than the sum of its proper divisors (72907057).

444142223 is a wasteful number, since it uses less digits than its factorization.

444142223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926 (or 6919 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 444142223 is about 21074.6820379336. The cubic root of 444142223 is about 762.9698105498.

Adding to 444142223 its reverse (322241444), we get a palindrome (766383667).

It can be divided in two parts, 4441 and 42223, that added together give a palindrome (46664).

The spelling of 444142223 in words is "four hundred forty-four million, one hundred forty-two thousand, two hundred twenty-three".