42244313 has 4 divisors (see below), whose sum is σ = 42290148. Its totient is φ = 42198480.

The previous prime is 42244291. The next prime is 42244327. The reversal of 42244313 is 31344224.

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 24334489 + 17909824 = 4933^2 + 4232^2 .

It is a cyclic number.

It is not a de Polignac number, because 42244313 - 2⁶ = 42244249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42244333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21506 + ... + 23387.

It is an arithmetic number, because the mean of its divisors is an integer number (10572537).

Almost surely, 2^42244313 is an apocalyptic number.

It is an amenable number.

42244313 is a deficient number, since it is larger than the sum of its proper divisors (45835).

42244313 is an equidigital number, since it uses as much as digits as its factorization.

42244313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45834.

The product of its digits is 2304, while the sum is 23.

The square root of 42244313 is about 6499.5625237396. The cubic root of 42244313 is about 348.2753606251.

Adding to 42244313 its reverse (31344224), we get a palindrome (73588537).

The spelling of 42244313 in words is "forty-two million, two hundred forty-four thousand, three hundred thirteen".