42220342 has 8 divisors (see below), whose sum is σ = 63756000. Its totient is φ = 20968344.

The previous prime is 42220331. The next prime is 42220349. The reversal of 42220342 is 24302224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42220349) 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, 70542 + ... + 71137.

It is an arithmetic number, because the mean of its divisors is an integer number (7969500).

Almost surely, 2^42220342 is an apocalyptic number.

42220342 is a deficient number, since it is larger than the sum of its proper divisors (21535658).

42220342 is a wasteful number, since it uses less digits than its factorization.

42220342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141830.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42220342 is about 6497.7182148813. The cubic root of 42220342 is about 348.2094733481.

Adding to 42220342 its reverse (24302224), we get a palindrome (66522566).

The spelling of 42220342 in words is "forty-two million, two hundred twenty thousand, three hundred forty-two".