422140342 has 8 divisors (see below), whose sum is σ = 681919056. Its totient is φ = 194833992.

The previous prime is 422140273. The next prime is 422140343. The reversal of 422140342 is 243041224.

It is a happy number.

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 (422140343) 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, 8118058 + ... + 8118109.

It is an arithmetic number, because the mean of its divisors is an integer number (85239882).

Almost surely, 2^422140342 is an apocalyptic number.

422140342 is a deficient number, since it is larger than the sum of its proper divisors (259778714).

422140342 is a wasteful number, since it uses less digits than its factorization.

422140342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16236182.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 422140342 is about 20546.0541710568. The cubic root of 422140342 is about 750.1572067495.

Adding to 422140342 its reverse (243041224), we get a palindrome (665181566).

The spelling of 422140342 in words is "four hundred twenty-two million, one hundred forty thousand, three hundred forty-two".