42242313 has 8 divisors (see below), whose sum is σ = 56373568. Its totient is φ = 28136304.

The previous prime is 42242311. The next prime is 42242351. The reversal of 42242313 is 31324224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42242313 - 2¹ = 42242311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42242313.

It is not an unprimeable number, because it can be changed into a prime (42242311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 9402.

It is an arithmetic number, because the mean of its divisors is an integer number (7046696).

Almost surely, 2^42242313 is an apocalyptic number.

It is an amenable number.

42242313 is a deficient number, since it is larger than the sum of its proper divisors (14131255).

42242313 is a wasteful number, since it uses less digits than its factorization.

42242313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12623.

The product of its digits is 1152, while the sum is 21.

The square root of 42242313 is about 6499.4086654095. The cubic root of 42242313 is about 348.2698643293.

Adding to 42242313 its reverse (31324224), we get a palindrome (73566537).

The spelling of 42242313 in words is "forty-two million, two hundred forty-two thousand, three hundred thirteen".