449331023 has 2 divisors, whose sum is σ = 449331024. Its totient is φ = 449331022.

The previous prime is 449330989. The next prime is 449331031. The reversal of 449331023 is 320133944.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449331023 is a prime.

It is equal to p_23819420 and since 449331023 and 23819420 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449331073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224665511 + 224665512.

It is an arithmetic number, because the mean of its divisors is an integer number (224665512).

Almost surely, 2^449331023 is an apocalyptic number.

449331023 is a deficient number, since it is larger than the sum of its proper divisors (1).

449331023 is an equidigital number, since it uses as much as digits as its factorization.

449331023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 449331023 is about 21197.4296319153. The cubic root of 449331023 is about 765.9295082234.

Adding to 449331023 its reverse (320133944), we get a palindrome (769464967).

The spelling of 449331023 in words is "four hundred forty-nine million, three hundred thirty-one thousand, twenty-three".