444420052 has 48 divisors (see below), whose sum is σ = 843832080. Its totient is φ = 204019712.

The previous prime is 444420049. The next prime is 444420059. The reversal of 444420052 is 250024444.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9947716 + 434472336 = 3154^2 + 20844^2 .

It is a super-3 number, since 3×444420052³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444419999 and 444420026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444420059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142274 + ... + 1142662.

It is an arithmetic number, because the mean of its divisors is an integer number (17579835).

Almost surely, 2^444420052 is an apocalyptic number.

It is an amenable number.

444420052 is a deficient number, since it is larger than the sum of its proper divisors (399412028).

444420052 is a wasteful number, since it uses less digits than its factorization.

444420052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 444420052 is about 21081.2725422352. The cubic root of 444420052 is about 763.1288669242.

Adding to 444420052 its reverse (250024444), we get a palindrome (694444496).

The spelling of 444420052 in words is "four hundred forty-four million, four hundred twenty thousand, fifty-two".