449899994 has 8 divisors (see below), whose sum is σ = 678751380. Its totient is φ = 223649536.

The previous prime is 449899991. The next prime is 449900021. The reversal of 449899994 is 499998944.

It can be written as a sum of positive squares in 2 ways, for example, as 445758769 + 4141225 = 21113^2 + 2035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 449899994.

It is not an unprimeable number, because it can be changed into a prime (449899991) 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, 649799 + ... + 650490.

Almost surely, 2^449899994 is an apocalyptic number.

449899994 is a deficient number, since it is larger than the sum of its proper divisors (228851386).

449899994 is a wasteful number, since it uses less digits than its factorization.

449899994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300464.

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

The square root of 449899994 is about 21210.8461405951. The cubic root of 449899994 is about 766.2526611203.

The spelling of 449899994 in words is "four hundred forty-nine million, eight hundred ninety-nine thousand, nine hundred ninety-four".