1004444125 has 8 divisors (see below), whose sum is σ = 1253546424. Its totient is φ = 803555200.

The previous prime is 1004444123. The next prime is 1004444131. The reversal of 1004444125 is 5214444001.

It can be written as a sum of positive squares in 4 ways, for example, as 126270169 + 878173956 = 11237^2 + 29634^2 .

It is not a de Polignac number, because 1004444125 - 2¹ = 1004444123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004444125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004444123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4017652 + ... + 4017901.

It is an arithmetic number, because the mean of its divisors is an integer number (156693303).

Almost surely, 2^1004444125 is an apocalyptic number.

It is an amenable number.

1004444125 is a deficient number, since it is larger than the sum of its proper divisors (249102299).

1004444125 is an frugal number, since it uses more digits than its factorization.

1004444125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035568 (or 8035558 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1004444125 is about 31692.9664910055. The cubic root of 1004444125 is about 1001.4791859302.

Adding to 1004444125 its reverse (5214444001), we get a palindrome (6218888126).

The spelling of 1004444125 in words is "one billion, four million, four hundred forty-four thousand, one hundred twenty-five".