444244431 has 4 divisors (see below), whose sum is σ = 592325912. Its totient is φ = 296162952.

The previous prime is 444244429. The next prime is 444244439. The reversal of 444244431 is 134442444.

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

It is not a de Polignac number, because 444244431 - 2¹ = 444244429 is a prime.

It is a super-2 number, since 2×444244431² = 394706228949027522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444244439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74040736 + ... + 74040741.

It is an arithmetic number, because the mean of its divisors is an integer number (148081478).

Almost surely, 2^444244431 is an apocalyptic number.

444244431 is a deficient number, since it is larger than the sum of its proper divisors (148081481).

444244431 is a wasteful number, since it uses less digits than its factorization.

444244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148081480.

The product of its digits is 24576, while the sum is 30.

The square root of 444244431 is about 21077.1067986097. The cubic root of 444244431 is about 763.0283320723.

Adding to 444244431 its reverse (134442444), we get a palindrome (578686875).

The spelling of 444244431 in words is "four hundred forty-four million, two hundred forty-four thousand, four hundred thirty-one".