4220142 has 8 divisors (see below), whose sum is σ = 8440296. Its totient is φ = 1406712.

The previous prime is 4220141. The next prime is 4220143. The reversal of 4220142 is 2410224.

It is an interprime number because it is at equal distance from previous prime (4220141) and next prime (4220143).

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

4220142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220141) 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, 351673 + ... + 351684.

It is an arithmetic number, because the mean of its divisors is an integer number (1055037).

Almost surely, 2^4220142 is an apocalyptic number.

4220142 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.

4220142 is a wasteful number, since it uses less digits than its factorization.

4220142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703362.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4220142 is about 2054.2984203859. The cubic root of 4220142 is about 161.6003714905.

Adding to 4220142 its reverse (2410224), we get a palindrome (6630366).

The spelling of 4220142 in words is "four million, two hundred twenty thousand, one hundred forty-two".