4420123 has 4 divisors (see below), whose sum is σ = 4426720. Its totient is φ = 4413528.

The previous prime is 4420081. The next prime is 4420127. The reversal of 4420123 is 3210244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4420123 is a prime.

It is a Duffinian number.

4420123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4420097 and 4420106.

It is not an unprimeable number, because it can be changed into a prime (4420127) 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 3 ways as a sum of consecutive naturals, for example, 2163 + ... + 3676.

It is an arithmetic number, because the mean of its divisors is an integer number (1106680).

Almost surely, 2^4420123 is an apocalyptic number.

4420123 is a deficient number, since it is larger than the sum of its proper divisors (6597).

4420123 is an equidigital number, since it uses as much as digits as its factorization.

4420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4420123 is about 2102.4088565262. The cubic root of 4420123 is about 164.1136803528.

Adding to 4420123 its reverse (3210244), we get a palindrome (7630367).

The spelling of 4420123 in words is "four million, four hundred twenty thousand, one hundred twenty-three".