444142311 has 4 divisors (see below), whose sum is σ = 592189752. Its totient is φ = 296094872.

The previous prime is 444142297. The next prime is 444142343. The reversal of 444142311 is 113241444.

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 444142311 - 2⁶ = 444142247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444141311) 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, 74023716 + ... + 74023721.

It is an arithmetic number, because the mean of its divisors is an integer number (148047438).

Almost surely, 2^444142311 is an apocalyptic number.

444142311 is a deficient number, since it is larger than the sum of its proper divisors (148047441).

444142311 is a wasteful number, since it uses less digits than its factorization.

444142311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148047440.

The product of its digits is 1536, while the sum is 24.

The square root of 444142311 is about 21074.6841257467. The cubic root of 444142311 is about 762.9698609400.

Adding to 444142311 its reverse (113241444), we get a palindrome (557383755).

The spelling of 444142311 in words is "four hundred forty-four million, one hundred forty-two thousand, three hundred eleven".