1004442444 has 84 divisors (see below), whose sum is σ = 2645103720. Its totient is φ = 333590400.

The previous prime is 1004442401. The next prime is 1004442457. The reversal of 1004442444 is 4442444001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1168887 + ... + 1169745.

It is an arithmetic number, because the mean of its divisors is an integer number (31489330).

Almost surely, 2^1004442444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004442444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322551860).

1004442444 is an abundant number, since it is smaller than the sum of its proper divisors (1640661276).

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

1004442444 is an equidigital number, since it uses as much as digits as its factorization.

1004442444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1265 counting only the distinct ones).

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

The square root of 1004442444 is about 31692.9399709147. The cubic root of 1004442444 is about 1001.4786272505.

Adding to 1004442444 its reverse (4442444001), we get a palindrome (5446886445).

The spelling of 1004442444 in words is "one billion, four million, four hundred forty-two thousand, four hundred forty-four".