499944439 has 2 divisors, whose sum is σ = 499944440. Its totient is φ = 499944438.

The previous prime is 499944383. The next prime is 499944443. The reversal of 499944439 is 934449994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499944439 - 2²⁵ = 466390007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499944439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499944479) 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, 249972219 + 249972220.

It is an arithmetic number, because the mean of its divisors is an integer number (249972220).

Almost surely, 2^499944439 is an apocalyptic number.

499944439 is a deficient number, since it is larger than the sum of its proper divisors (1).

499944439 is an equidigital number, since it uses as much as digits as its factorization.

499944439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5038848, while the sum is 55.

The square root of 499944439 is about 22359.4373587530. The cubic root of 499944439 is about 793.6711256985.

The spelling of 499944439 in words is "four hundred ninety-nine million, nine hundred forty-four thousand, four hundred thirty-nine".