444221021434 has 8 divisors (see below), whose sum is σ = 666363381120. Its totient is φ = 222099894396.

The previous prime is 444221021429. The next prime is 444221021441. The reversal of 444221021434 is 434120122444.

It is a happy number.

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 = 444221021396 and 444221021405.

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, 5255754 + ... + 5339605.

It is an arithmetic number, because the mean of its divisors is an integer number (83295422640).

Almost surely, 2^444221021434 is an apocalyptic number.

444221021434 is a deficient number, since it is larger than the sum of its proper divisors (222142359686).

444221021434 is a wasteful number, since it uses less digits than its factorization.

444221021434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616324.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 444221021434 its reverse (434120122444), we get a palindrome (878341143878).

It can be divided in two parts, 4442210 and 21434, that added together give a palindrome (4463644).

The spelling of 444221021434 in words is "four hundred forty-four billion, two hundred twenty-one million, twenty-one thousand, four hundred thirty-four".