444105631 has 4 divisors (see below), whose sum is σ = 444151512. Its totient is φ = 444059752.

The previous prime is 444105611. The next prime is 444105691. The reversal of 444105631 is 136501444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 444105631 - 2⁷ = 444105503 is a prime.

It is a super-2 number, since 2×444105631² = 394459622971816322, 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 444105631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444105611) 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, 2125 + ... + 29878.

It is an arithmetic number, because the mean of its divisors is an integer number (111037878).

Almost surely, 2^444105631 is an apocalyptic number.

444105631 is a deficient number, since it is larger than the sum of its proper divisors (45881).

444105631 is a wasteful number, since it uses less digits than its factorization.

444105631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45880.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 444105631 is about 21073.8138693498. The cubic root of 444105631 is about 762.9488567827.

The spelling of 444105631 in words is "four hundred forty-four million, one hundred five thousand, six hundred thirty-one".