444121443 has 24 divisors (see below), whose sum is σ = 648636768. Its totient is φ = 292810752.

The previous prime is 444121441. The next prime is 444121459. The reversal of 444121443 is 344121444.

444121443 is a `hidden beast` number, since 4 + 441 + 214 + 4 + 3 = 666.

It is not a de Polignac number, because 444121443 - 2¹ = 444121441 is a prime.

It is a super-2 number, since 2×444121443² = 394487712264804498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444121441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362530 + ... + 363752.

It is an arithmetic number, because the mean of its divisors is an integer number (27026532).

Almost surely, 2^444121443 is an apocalyptic number.

444121443 is a deficient number, since it is larger than the sum of its proper divisors (204515325).

444121443 is a wasteful number, since it uses less digits than its factorization.

444121443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1640 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 444121443 is about 21074.1890235425. The cubic root of 444121443 is about 762.9579113884.

Adding to 444121443 its reverse (344121444), we get a palindrome (788242887).

Subtracting from 444121443 its reverse (344121444), we obtain a palindrome (99999999).

The spelling of 444121443 in words is "four hundred forty-four million, one hundred twenty-one thousand, four hundred forty-three".