449579839 has 2 divisors, whose sum is σ = 449579840. Its totient is φ = 449579838.

The previous prime is 449579833. The next prime is 449579857. The reversal of 449579839 is 938975944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449579839 - 2⁹ = 449579327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449579833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224789919 + 224789920.

It is an arithmetic number, because the mean of its divisors is an integer number (224789920).

Almost surely, 2^449579839 is an apocalyptic number.

449579839 is a deficient number, since it is larger than the sum of its proper divisors (1).

449579839 is an equidigital number, since it uses as much as digits as its factorization.

449579839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 58.

The square root of 449579839 is about 21203.2978331202. The cubic root of 449579839 is about 766.0708593585.

The spelling of 449579839 in words is "four hundred forty-nine million, five hundred seventy-nine thousand, eight hundred thirty-nine".