1004404439 has 2 divisors, whose sum is σ = 1004404440. Its totient is φ = 1004404438.

The previous prime is 1004404393. The next prime is 1004404441. The reversal of 1004404439 is 9344044001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1004404439 - 2¹² = 1004400343 is a prime.

Together with 1004404441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004404459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502202219 + 502202220.

It is an arithmetic number, because the mean of its divisors is an integer number (502202220).

Almost surely, 2^1004404439 is an apocalyptic number.

1004404439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004404439 is an equidigital number, since it uses as much as digits as its factorization.

1004404439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1004404439 is about 31692.3403837583. The cubic root of 1004404439 is about 1001.4659961384.

The spelling of 1004404439 in words is "one billion, four million, four hundred four thousand, four hundred thirty-nine".