1044442613 has 2 divisors, whose sum is σ = 1044442614. Its totient is φ = 1044442612.

The previous prime is 1044442591. The next prime is 1044442621. The reversal of 1044442613 is 3162444401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 762974884 + 281467729 = 27622^2 + 16777^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044442613 - 2¹⁰ = 1044441589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044444613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522221306 + 522221307.

It is an arithmetic number, because the mean of its divisors is an integer number (522221307).

Almost surely, 2^1044442613 is an apocalyptic number.

It is an amenable number.

1044442613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044442613 is an equidigital number, since it uses as much as digits as its factorization.

1044442613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1044442613 is about 32317.8373812358. The cubic root of 1044442613 is about 1014.6000067560.

The spelling of 1044442613 in words is "one billion, forty-four million, four hundred forty-two thousand, six hundred thirteen".