449689311 has 6 divisors (see below), whose sum is σ = 649551240. Its totient is φ = 299792868.

The previous prime is 449689309. The next prime is 449689343. The reversal of 449689311 is 113986944.

It is not a de Polignac number, because 449689311 - 2¹ = 449689309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449689351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24982731 + ... + 24982748.

It is an arithmetic number, because the mean of its divisors is an integer number (108258540).

Almost surely, 2^449689311 is an apocalyptic number.

449689311 is a deficient number, since it is larger than the sum of its proper divisors (199861929).

449689311 is a wasteful number, since it uses less digits than its factorization.

449689311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49965485 (or 49965482 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 449689311 is about 21205.8791612138. The cubic root of 449689311 is about 766.1330333381.

The spelling of 449689311 in words is "four hundred forty-nine million, six hundred eighty-nine thousand, three hundred eleven".