449274018 has 16 divisors (see below), whose sum is σ = 899022816. Its totient is φ = 149678880.

The previous prime is 449273989. The next prime is 449274029. The reversal of 449274018 is 810472944.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6828 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (56188926).

Almost surely, 2^449274018 is an apocalyptic number.

449274018 is an abundant number, since it is smaller than the sum of its proper divisors (449748798).

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

449274018 is a wasteful number, since it uses less digits than its factorization.

449274018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39569.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 449274018 is about 21196.0849686917. The cubic root of 449274018 is about 765.8971166190.

The spelling of 449274018 in words is "four hundred forty-nine million, two hundred seventy-four thousand, eighteen".