449021418 has 16 divisors (see below), whose sum is σ = 922314720. Its totient is φ = 145628496.

The previous prime is 449021401. The next prime is 449021431. The reversal of 449021418 is 814120944.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011088 + ... + 1011531.

It is an arithmetic number, because the mean of its divisors is an integer number (57644670).

Almost surely, 2^449021418 is an apocalyptic number.

449021418 is an abundant number, since it is smaller than the sum of its proper divisors (473293302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449021418 is a wasteful number, since it uses less digits than its factorization.

449021418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022661.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 449021418 is about 21190.1254833472. The cubic root of 449021418 is about 765.7535502777.

The spelling of 449021418 in words is "four hundred forty-nine million, twenty-one thousand, four hundred eighteen".