449818313 has 16 divisors (see below), whose sum is σ = 527256576. Its totient is φ = 375716880.

The previous prime is 449818289. The next prime is 449818363. The reversal of 449818313 is 313818944.

It is not a de Polignac number, because 449818313 - 2²⁴ = 433041097 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (449818363) 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, 149918 + ... + 152888.

It is an arithmetic number, because the mean of its divisors is an integer number (32953536).

Almost surely, 2^449818313 is an apocalyptic number.

449818313 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

449818313 is a deficient number, since it is larger than the sum of its proper divisors (77438263).

449818313 is a wasteful number, since it uses less digits than its factorization.

449818313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524.

The product of its digits is 82944, while the sum is 41.

The square root of 449818313 is about 21208.9205995968. The cubic root of 449818313 is about 766.2062863166.

The spelling of 449818313 in words is "four hundred forty-nine million, eight hundred eighteen thousand, three hundred thirteen".