444142404 has 72 divisors (see below), whose sum is σ = 1184820000. Its totient is φ = 139895424.

The previous prime is 444142393. The next prime is 444142421. The reversal of 444142404 is 404241444.

444142404 is a `hidden beast` number, since 4 + 4 + 414 + 240 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422872 + ... + 423920.

Almost surely, 2^444142404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444142404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592410000).

444142404 is an abundant number, since it is smaller than the sum of its proper divisors (740677596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444142404 is a wasteful number, since it uses less digits than its factorization.

444142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 444142404 is about 21074.6863321853. The cubic root of 444142404 is about 762.9699141934.

Adding to 444142404 its reverse (404241444), we get a palindrome (848383848).

The spelling of 444142404 in words is "four hundred forty-four million, one hundred forty-two thousand, four hundred four".