444415144 has 16 divisors (see below), whose sum is σ = 834088500. Its totient is φ = 221991552.

The previous prime is 444415141. The next prime is 444415151. The reversal of 444415144 is 441514444.

It can be written as a sum of positive squares in 2 ways, for example, as 439740900 + 4674244 = 20970^2 + 2162^2 .

It is not an unprimeable number, because it can be changed into a prime (444415141) 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, 18087 + ... + 34870.

Almost surely, 2^444415144 is an apocalyptic number.

It is an amenable number.

444415144 is a deficient number, since it is larger than the sum of its proper divisors (389673356).

444415144 is a wasteful number, since it uses less digits than its factorization.

444415144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54012 (or 54008 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 444415144 is about 21081.1561352787. The cubic root of 444415144 is about 763.1260576823.

Adding to 444415144 its reverse (441514444), we get a palindrome (885929588).

The spelling of 444415144 in words is "four hundred forty-four million, four hundred fifteen thousand, one hundred forty-four".