4421142 has 48 divisors (see below), whose sum is σ = 10850112. Its totient is φ = 1338120.

The previous prime is 4421141. The next prime is 4421143. The reversal of 4421142 is 2411244.

It is an interprime number because it is at equal distance from previous prime (4421141) and next prime (4421143).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4933 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (226044).

Almost surely, 2^4421142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4421142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5425056).

4421142 is an abundant number, since it is smaller than the sum of its proper divisors (6428970).

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

4421142 is a wasteful number, since it uses less digits than its factorization.

4421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 843 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 4421142 is about 2102.6511836251. The cubic root of 4421142 is about 164.1262907855.

Adding to 4421142 its reverse (2411244), we get a palindrome (6832386).

It can be divided in two parts, 44211 and 42, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 4421142 in words is "four million, four hundred twenty-one thousand, one hundred forty-two".