42242342 has 4 divisors (see below), whose sum is σ = 63363516. Its totient is φ = 21121170.

The previous prime is 42242311. The next prime is 42242351. The reversal of 42242342 is 24324224.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560584 + ... + 10560587.

It is an arithmetic number, because the mean of its divisors is an integer number (15840879).

Almost surely, 2^42242342 is an apocalyptic number.

42242342 is a deficient number, since it is larger than the sum of its proper divisors (21121174).

42242342 is a wasteful number, since it uses less digits than its factorization.

42242342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21121173.

The product of its digits is 3072, while the sum is 23.

The square root of 42242342 is about 6499.4108963813. The cubic root of 42242342 is about 348.2699440268.

Adding to 42242342 its reverse (24324224), we get a palindrome (66566566).

The spelling of 42242342 in words is "forty-two million, two hundred forty-two thousand, three hundred forty-two".