1604441023 has 2 divisors, whose sum is σ = 1604441024. Its totient is φ = 1604441022.

The previous prime is 1604440919. The next prime is 1604441077. The reversal of 1604441023 is 3201444061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604441023 - 2⁹ = 1604440511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604441123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802220511 + 802220512.

It is an arithmetic number, because the mean of its divisors is an integer number (802220512).

Almost surely, 2^1604441023 is an apocalyptic number.

1604441023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604441023 is an equidigital number, since it uses as much as digits as its factorization.

1604441023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1604441023 is about 40055.4743199978. The cubic root of 1604441023 is about 1170.6882314556.

Adding to 1604441023 its reverse (3201444061), we get a palindrome (4805885084).

The spelling of 1604441023 in words is "one billion, six hundred four million, four hundred forty-one thousand, twenty-three".