313040449 has 4 divisors (see below), whose sum is σ = 323138560. Its totient is φ = 302942340.

The previous prime is 313040407. The next prime is 313040467. The reversal of 313040449 is 944040313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944040313 = 23 ⋅41045231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313040449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313010449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049009 + ... + 5049070.

It is an arithmetic number, because the mean of its divisors is an integer number (80784640).

Almost surely, 2^313040449 is an apocalyptic number.

It is an amenable number.

313040449 is a deficient number, since it is larger than the sum of its proper divisors (10098111).

313040449 is a wasteful number, since it uses less digits than its factorization.

313040449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098110.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 313040449 is about 17692.9491323521. The cubic root of 313040449 is about 678.9953799890.

The spelling of 313040449 in words is "three hundred thirteen million, forty thousand, four hundred forty-nine".