449462181 has 16 divisors (see below), whose sum is σ = 693149184. Its totient is φ = 253740144.

The previous prime is 449462161. The next prime is 449462183. The reversal of 449462181 is 181264944.

It is not a de Polignac number, because 449462181 - 2⁹ = 449461669 is a prime.

It is a super-2 number, since 2×449462181² = 404032504298553522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449462183) 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 15 ways as a sum of consecutive naturals, for example, 127191 + ... + 130676.

It is an arithmetic number, because the mean of its divisors is an integer number (43321824).

Almost surely, 2^449462181 is an apocalyptic number.

It is an amenable number.

449462181 is a deficient number, since it is larger than the sum of its proper divisors (243687003).

449462181 is a wasteful number, since it uses less digits than its factorization.

449462181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257960.

The product of its digits is 55296, while the sum is 39.

The square root of 449462181 is about 21200.5231303381. The cubic root of 449462181 is about 766.0040249341.

The spelling of 449462181 in words is "four hundred forty-nine million, four hundred sixty-two thousand, one hundred eighty-one".