444331224 has 128 divisors (see below), whose sum is σ = 1292760000. Its totient is φ = 141253632.

The previous prime is 444331189. The next prime is 444331229. The reversal of 444331224 is 422133444.

It is a happy number.

444331224 is a `hidden beast` number, since 4 + 4 + 433 + 1 + 224 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444331229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423052 + ... + 424100.

Almost surely, 2^444331224 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 444331224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646380000).

444331224 is an abundant number, since it is smaller than the sum of its proper divisors (848428776).

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

444331224 is a wasteful number, since it uses less digits than its factorization.

444331224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1144 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 444331224 is about 21079.1656381366. The cubic root of 444331224 is about 763.0780203377.

Adding to 444331224 its reverse (422133444), we get a palindrome (866464668).

The spelling of 444331224 in words is "four hundred forty-four million, three hundred thirty-one thousand, two hundred twenty-four".