444342331 has 4 divisors (see below), whose sum is σ = 444400672. Its totient is φ = 444283992.

The previous prime is 444342319. The next prime is 444342337. The reversal of 444342331 is 133243444.

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 444342331 - 2⁵ = 444342299 is a prime.

It is a super-2 number, since 2×444342331² = 394880214237027122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444342331.

It is not an unprimeable number, because it can be changed into a prime (444342337) 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, 15660 + ... + 33673.

It is an arithmetic number, because the mean of its divisors is an integer number (111100168).

Almost surely, 2^444342331 is an apocalyptic number.

444342331 is a deficient number, since it is larger than the sum of its proper divisors (58341).

444342331 is an equidigital number, since it uses as much as digits as its factorization.

444342331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58340.

The product of its digits is 13824, while the sum is 28.

The square root of 444342331 is about 21079.4290956847. The cubic root of 444342331 is about 763.0843785352.

Adding to 444342331 its reverse (133243444), we get a palindrome (577585775).

The spelling of 444342331 in words is "four hundred forty-four million, three hundred forty-two thousand, three hundred thirty-one".