4420142 has 16 divisors (see below), whose sum is σ = 6864000. Its totient is φ = 2133432.

The previous prime is 4420139. The next prime is 4420159. The reversal of 4420142 is 2410244.

It is a self number, because there is not a number n which added to its sum of digits gives 4420142.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8609 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (429000).

Almost surely, 2^4420142 is an apocalyptic number.

4420142 is a deficient number, since it is larger than the sum of its proper divisors (2443858).

4420142 is a wasteful number, since it uses less digits than its factorization.

4420142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4420142 is about 2102.4133751477. The cubic root of 4420142 is about 164.1139155013.

Adding to 4420142 its reverse (2410244), we get a palindrome (6830386).

The spelling of 4420142 in words is "four million, four hundred twenty thousand, one hundred forty-two".