1004120444 has 12 divisors (see below), whose sum is σ = 1757442624. Its totient is φ = 501993984.

The previous prime is 1004120443. The next prime is 1004120461. The reversal of 1004120444 is 4440214001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004120443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36284 + ... + 57660.

It is an arithmetic number, because the mean of its divisors is an integer number (146453552).

Almost surely, 2^1004120444 is an apocalyptic number.

It is an amenable number.

1004120444 is a deficient number, since it is larger than the sum of its proper divisors (753322180).

1004120444 is a wasteful number, since it uses less digits than its factorization.

1004120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33124 (or 33122 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1004120444 is about 31687.8595679797. The cubic root of 1004120444 is about 1001.3715991889.

Adding to 1004120444 its reverse (4440214001), we get a palindrome (5444334445).

The spelling of 1004120444 in words is "one billion, four million, one hundred twenty thousand, four hundred forty-four".