3440313 has 10 divisors (see below), whose sum is σ = 5139354. Its totient is φ = 2293488.

The previous prime is 3440309. The next prime is 3440323. The reversal of 3440313 is 3130443.

It can be written as a sum of positive squares in only one way, i.e., 2424249 + 1016064 = 1557^2 + 1008^2 .

It is not a de Polignac number, because 3440313 - 2² = 3440309 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3440323) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21156 + ... + 21317.

Almost surely, 2^3440313 is an apocalyptic number.

It is an amenable number.

3440313 is a deficient number, since it is larger than the sum of its proper divisors (1699041).

3440313 is an equidigital number, since it uses as much as digits as its factorization.

3440313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42485 (or 42476 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3440313 is about 1854.8080763249. The cubic root of 3440313 is about 150.9614245861.

Adding to 3440313 its reverse (3130443), we get a palindrome (6570756).

The spelling of 3440313 in words is "three million, four hundred forty thousand, three hundred thirteen".