449893999 has 4 divisors (see below), whose sum is σ = 449990064. Its totient is φ = 449797936.

The previous prime is 449893981. The next prime is 449894017. The reversal of 449893999 is 999398944.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (449893981) and next prime (449894017).

It is a cyclic number.

It is not a de Polignac number, because 449893999 - 2¹¹ = 449891951 is a prime.

It is a super-2 number, since 2×449893999² = 404809220672424002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449893999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449893919) 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 in 3 ways as a sum of consecutive naturals, for example, 40627 + ... + 50500.

It is an arithmetic number, because the mean of its divisors is an integer number (112497516).

Almost surely, 2^449893999 is an apocalyptic number.

449893999 is a deficient number, since it is larger than the sum of its proper divisors (96065).

449893999 is an equidigital number, since it uses as much as digits as its factorization.

449893999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96064.

The product of its digits is 22674816, while the sum is 64.

The square root of 449893999 is about 21210.7048209153. The cubic root of 449893999 is about 766.2492576194.

The spelling of 449893999 in words is "four hundred forty-nine million, eight hundred ninety-three thousand, nine hundred ninety-nine".