449471511 has 28 divisors (see below), whose sum is σ = 695672640. Its totient is φ = 289967040.

The previous prime is 449471509. The next prime is 449471537. The reversal of 449471511 is 115174944.

It is not a de Polignac number, because 449471511 - 2¹ = 449471509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449471591) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 12655 + ... + 32543.

Almost surely, 2^449471511 is an apocalyptic number.

449471511 is a deficient number, since it is larger than the sum of its proper divisors (246201129).

449471511 is an equidigital number, since it uses as much as digits as its factorization.

449471511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19938 (or 19923 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 449471511 is about 21200.7431709362. The cubic root of 449471511 is about 766.0093251710.

The spelling of 449471511 in words is "four hundred forty-nine million, four hundred seventy-one thousand, five hundred eleven".