4221338142 has 24 divisors (see below), whose sum is σ = 9821073096. Its totient is φ = 1206096528.

The previous prime is 4221338137. The next prime is 4221338159. The reversal of 4221338142 is 2418331224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7178853 + ... + 7179440.

It is an arithmetic number, because the mean of its divisors is an integer number (409211379).

Almost surely, 2^4221338142 is an apocalyptic number.

4221338142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4221338142 is an abundant number, since it is smaller than the sum of its proper divisors (5599734954).

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

4221338142 is a wasteful number, since it uses less digits than its factorization.

4221338142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14358312 (or 14358305 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 4221338142 is about 64971.8257554765. The cubic root of 4221338142 is about 1616.1563785926.

Adding to 4221338142 its reverse (2418331224), we get a palindrome (6639669366).

The spelling of 4221338142 in words is "four billion, two hundred twenty-one million, three hundred thirty-eight thousand, one hundred forty-two".