142321422 has 8 divisors (see below), whose sum is σ = 284642856. Its totient is φ = 47440472.

The previous prime is 142321397. The next prime is 142321429. The reversal of 142321422 is 224123241.

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

142321422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321429) 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, 11860113 + ... + 11860124.

It is an arithmetic number, because the mean of its divisors is an integer number (35580357).

Almost surely, 2^142321422 is an apocalyptic number.

142321422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142321422 is a wasteful number, since it uses less digits than its factorization.

142321422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23720242.

The product of its digits is 768, while the sum is 21.

The square root of 142321422 is about 11929.8542321354. The cubic root of 142321422 is about 522.1036845755.

Adding to 142321422 its reverse (224123241), we get a palindrome (366444663).

The spelling of 142321422 in words is "one hundred forty-two million, three hundred twenty-one thousand, four hundred twenty-two".