42244613 has 4 divisors (see below), whose sum is σ = 42261120. Its totient is φ = 42228108.

The previous prime is 42244603. The next prime is 42244627. The reversal of 42244613 is 31644224.

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 42244613 - 2⁴ = 42244597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244603) 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, 3503 + ... + 9836.

It is an arithmetic number, because the mean of its divisors is an integer number (10565280).

Almost surely, 2^42244613 is an apocalyptic number.

It is an amenable number.

42244613 is a deficient number, since it is larger than the sum of its proper divisors (16507).

42244613 is a wasteful number, since it uses less digits than its factorization.

42244613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16506.

The product of its digits is 4608, while the sum is 26.

The square root of 42244613 is about 6499.5856021750. The cubic root of 42244613 is about 348.2761850545.

Adding to 42244613 its reverse (31644224), we get a palindrome (73888837).

The spelling of 42244613 in words is "forty-two million, two hundred forty-four thousand, six hundred thirteen".