42221342 has 8 divisors (see below), whose sum is σ = 63698616. Its totient is φ = 20988472.

The previous prime is 42221339. The next prime is 42221359. The reversal of 42221342 is 24312224.

42221342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60668 + ... + 61359.

It is an arithmetic number, because the mean of its divisors is an integer number (7962327).

Almost surely, 2^42221342 is an apocalyptic number.

42221342 is a deficient number, since it is larger than the sum of its proper divisors (21477274).

42221342 is a wasteful number, since it uses less digits than its factorization.

42221342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122202.

The product of its digits is 768, while the sum is 20.

The square root of 42221342 is about 6497.7951645154. The cubic root of 42221342 is about 348.2122224710.

Adding to 42221342 its reverse (24312224), we get a palindrome (66533566).

The spelling of 42221342 in words is "forty-two million, two hundred twenty-one thousand, three hundred forty-two".