1004440013 has 4 divisors (see below), whose sum is σ = 1021464480. Its totient is φ = 987415548.

The previous prime is 1004440007. The next prime is 1004440033. The reversal of 1004440013 is 3100444001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1004440013 - 2²⁶ = 937331149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004439973 and 1004440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004440033) 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, 8512145 + ... + 8512262.

It is an arithmetic number, because the mean of its divisors is an integer number (255366120).

Almost surely, 2^1004440013 is an apocalyptic number.

It is an amenable number.

1004440013 is a deficient number, since it is larger than the sum of its proper divisors (17024467).

1004440013 is an equidigital number, since it uses as much as digits as its factorization.

1004440013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17024466.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1004440013 is about 31692.9016185013. The cubic root of 1004440013 is about 1001.4778193076.

Adding to 1004440013 its reverse (3100444001), we get a palindrome (4104884014).

The spelling of 1004440013 in words is "one billion, four million, four hundred forty thousand, thirteen".