449161492 has 18 divisors (see below), whose sum is σ = 846784778. Its totient is φ = 207234768.

The previous prime is 449161459. The next prime is 449161523. The reversal of 449161492 is 294161944.

It can be written as a sum of positive squares in only one way, i.e., 310957956 + 138203536 = 17634^2 + 11756^2 .

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 151359 + ... + 154297.

Almost surely, 2^449161492 is an apocalyptic number.

It is an amenable number.

449161492 is a deficient number, since it is larger than the sum of its proper divisors (397623286).

449161492 is an equidigital number, since it uses as much as digits as its factorization.

449161492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895 (or 2954 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 449161492 is about 21193.4303971773. The cubic root of 449161492 is about 765.8331686113.

The spelling of 449161492 in words is "four hundred forty-nine million, one hundred sixty-one thousand, four hundred ninety-two".