449461181 has 12 divisors (see below), whose sum is σ = 514186932. Its totient is φ = 390478848.

The previous prime is 449461171. The next prime is 449461189. The reversal of 449461181 is 181164944.

It can be written as a sum of positive squares in 6 ways, for example, as 19272100 + 430189081 = 4390^2 + 20741^2 .

It is not a de Polignac number, because 449461181 - 2¹⁰ = 449460157 is a prime.

It is a super-2 number, since 2×449461181² = 404030706451829522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449461189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56060 + ... + 63573.

It is an arithmetic number, because the mean of its divisors is an integer number (42848911).

Almost surely, 2^449461181 is an apocalyptic number.

It is an amenable number.

449461181 is a deficient number, since it is larger than the sum of its proper divisors (64725751).

449461181 is a wasteful number, since it uses less digits than its factorization.

449461181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119680 (or 119663 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 449461181 is about 21200.4995460013. The cubic root of 449461181 is about 766.0034568444.

The spelling of 449461181 in words is "four hundred forty-nine million, four hundred sixty-one thousand, one hundred eighty-one".