1004044045 has 16 divisors (see below), whose sum is σ = 1215047808. Its totient is φ = 796461120.

The previous prime is 1004044043. The next prime is 1004044049. The reversal of 1004044045 is 5404404001.

It is not a de Polignac number, because 1004044045 - 2¹ = 1004044043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004044043) 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 15 ways as a sum of consecutive naturals, for example, 494322 + ... + 496348.

It is an arithmetic number, because the mean of its divisors is an integer number (75940488).

Almost surely, 2^1004044045 is an apocalyptic number.

It is an amenable number.

1004044045 is a deficient number, since it is larger than the sum of its proper divisors (211003763).

1004044045 is a wasteful number, since it uses less digits than its factorization.

1004044045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1004044045 is about 31686.6540518244. The cubic root of 1004044045 is about 1001.3462019271.

Adding to 1004044045 its reverse (5404404001), we get a palindrome (6408448046).

The spelling of 1004044045 in words is "one billion, four million, forty-four thousand, forty-five".