499994489 has 2 divisors, whose sum is σ = 499994490. Its totient is φ = 499994488.

The previous prime is 499994459. The next prime is 499994533. The reversal of 499994489 is 984499994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434514025 + 65480464 = 20845^2 + 8092^2 .

It is a cyclic number.

It is not a de Polignac number, because 499994489 - 2⁸ = 499994233 is a prime.

It is a super-2 number, since 2×499994489² = 499988978060742242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (499994419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249997244 + 249997245.

It is an arithmetic number, because the mean of its divisors is an integer number (249997245).

Almost surely, 2^499994489 is an apocalyptic number.

It is an amenable number.

499994489 is a deficient number, since it is larger than the sum of its proper divisors (1).

499994489 is an equidigital number, since it uses as much as digits as its factorization.

499994489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30233088, while the sum is 65.

The square root of 499994489 is about 22360.5565449521. The cubic root of 499994489 is about 793.6976099177.

The spelling of 499994489 in words is "four hundred ninety-nine million, nine hundred ninety-four thousand, four hundred eighty-nine".