449316857 has 16 divisors (see below), whose sum is σ = 496964160. Its totient is φ = 402840000.

The previous prime is 449316853. The next prime is 449316869. The reversal of 449316857 is 758613944.

It is a cyclic number.

It is not a de Polignac number, because 449316857 - 2² = 449316853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449316853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300203 + ... + 301695.

It is an arithmetic number, because the mean of its divisors is an integer number (31060260).

Almost surely, 2^449316857 is an apocalyptic number.

It is an amenable number.

449316857 is a deficient number, since it is larger than the sum of its proper divisors (47647303).

449316857 is a wasteful number, since it uses less digits than its factorization.

449316857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864.

The product of its digits is 725760, while the sum is 47.

The square root of 449316857 is about 21197.0954849951. The cubic root of 449316857 is about 765.9214590192.

The spelling of 449316857 in words is "four hundred forty-nine million, three hundred sixteen thousand, eight hundred fifty-seven".