444142224 has 40 divisors (see below), whose sum is σ = 1274853920. Its totient is φ = 148047264.

The previous prime is 444142219. The next prime is 444142247. The reversal of 444142224 is 422241444.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513622 + ... + 514485.

It is an arithmetic number, because the mean of its divisors is an integer number (31871348).

Almost surely, 2^444142224 is an apocalyptic number.

It is an amenable number.

444142224 is an abundant number, since it is smaller than the sum of its proper divisors (830711696).

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

444142224 is a wasteful number, since it uses less digits than its factorization.

444142224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028124 (or 1028112 counting only the distinct ones).

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

The square root of 444142224 is about 21074.6820616587. The cubic root of 444142224 is about 762.9698111224.

Adding to 444142224 its reverse (422241444), we get a palindrome (866383668).

It can be divided in two parts, 4441 and 42224, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 444142224 in words is "four hundred forty-four million, one hundred forty-two thousand, two hundred twenty-four".