313908449 has 4 divisors (see below), whose sum is σ = 324034560. Its totient is φ = 303782340.

The previous prime is 313908437. The next prime is 313908457. The reversal of 313908449 is 944809313.

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.

It is a cyclic number.

It is not a de Polignac number, because 313908449 - 2⁴ = 313908433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313908409) 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, 5063009 + ... + 5063070.

It is an arithmetic number, because the mean of its divisors is an integer number (81008640).

Almost surely, 2^313908449 is an apocalyptic number.

It is an amenable number.

313908449 is a deficient number, since it is larger than the sum of its proper divisors (10126111).

313908449 is a wasteful number, since it uses less digits than its factorization.

313908449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126110.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 313908449 is about 17717.4616974328. The cubic root of 313908449 is about 679.6223746742.

The spelling of 313908449 in words is "three hundred thirteen million, nine hundred eight thousand, four hundred forty-nine".