444044642 has 8 divisors (see below), whose sum is σ = 666395100. Its totient is φ = 221912944.

The previous prime is 444044609. The next prime is 444044663. The reversal of 444044642 is 246440444.

It can be written as a sum of positive squares in 2 ways, for example, as 385690321 + 58354321 = 19639^2 + 7639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 444044599 and 444044608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49517 + ... + 57792.

Almost surely, 2^444044642 is an apocalyptic number.

444044642 is a deficient number, since it is larger than the sum of its proper divisors (222350458).

444044642 is a wasteful number, since it uses less digits than its factorization.

444044642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109380.

The product of its (nonzero) digits is 49152, while the sum is 32.

The square root of 444044642 is about 21072.3667868609. The cubic root of 444044642 is about 762.9139299434.

The spelling of 444044642 in words is "four hundred forty-four million, forty-four thousand, six hundred forty-two".