313440041 has 4 divisors (see below), whose sum is σ = 314338500. Its totient is φ = 312541584.

The previous prime is 313440031. The next prime is 313440047. The reversal of 313440041 is 140044313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95257600 + 218182441 = 9760^2 + 14771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313440041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313439995 and 313440022.

It is not an unprimeable number, because it can be changed into a prime (313440047) 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, 448706 + ... + 449403.

It is an arithmetic number, because the mean of its divisors is an integer number (78584625).

Almost surely, 2^313440041 is an apocalyptic number.

It is an amenable number.

313440041 is a deficient number, since it is larger than the sum of its proper divisors (898459).

313440041 is an equidigital number, since it uses as much as digits as its factorization.

313440041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898458.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 313440041 is about 17704.2379389795. The cubic root of 313440041 is about 679.2841666922.

Adding to 313440041 its reverse (140044313), we get a palindrome (453484354).

The spelling of 313440041 in words is "three hundred thirteen million, four hundred forty thousand, forty-one".