313278449 has 8 divisors (see below), whose sum is σ = 341971392. Its totient is φ = 284621040.

The previous prime is 313278419. The next prime is 313278463. The reversal of 313278449 is 944872313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313278449 - 2²⁰ = 312229873 is a prime.

It is a super-3 number, since 3×313278449³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313278409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11627 + ... + 27599.

It is an arithmetic number, because the mean of its divisors is an integer number (42746424).

Almost surely, 2^313278449 is an apocalyptic number.

It is an amenable number.

313278449 is a deficient number, since it is larger than the sum of its proper divisors (28692943).

313278449 is a wasteful number, since it uses less digits than its factorization.

313278449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767.

The product of its digits is 145152, while the sum is 41.

The square root of 313278449 is about 17699.6736975573. The cubic root of 313278449 is about 679.1674130963.

The spelling of 313278449 in words is "three hundred thirteen million, two hundred seventy-eight thousand, four hundred forty-nine".