444221504 has 14 divisors (see below), whose sum is σ = 881502174. Its totient is φ = 222110720.

The previous prime is 444221467. The next prime is 444221513. The reversal of 444221504 is 405122444.

It can be written as a sum of positive squares in only one way, i.e., 385729600 + 58491904 = 19640^2 + 7648^2 .

It is a super-3 number, since 3×444221504³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470417 + ... + 3470544.

It is an arithmetic number, because the mean of its divisors is an integer number (62964441).

Almost surely, 2^444221504 is an apocalyptic number.

It is an amenable number.

444221504 is a deficient number, since it is larger than the sum of its proper divisors (437280670).

444221504 is an equidigital number, since it uses as much as digits as its factorization.

444221504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940973 (or 6940963 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 444221504 is about 21076.5629076470. The cubic root of 444221504 is about 763.0152054763.

Adding to 444221504 its reverse (405122444), we get a palindrome (849343948).

The spelling of 444221504 in words is "four hundred forty-four million, two hundred twenty-one thousand, five hundred four".