4223718 has 64 divisors (see below), whose sum is σ = 10264320. Its totient is φ = 1282176.

The previous prime is 4223717. The next prime is 4223741. The reversal of 4223718 is 8173224.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4223691 and 4223700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39421 + ... + 39527.

It is an arithmetic number, because the mean of its divisors is an integer number (160380).

Almost surely, 2^4223718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4223718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5132160).

4223718 is an abundant number, since it is smaller than the sum of its proper divisors (6040602).

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

4223718 is a wasteful number, since it uses less digits than its factorization.

4223718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 172 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 4223718 is about 2055.1686062219. The cubic root of 4223718 is about 161.6460034289.

The spelling of 4223718 in words is "four million, two hundred twenty-three thousand, seven hundred eighteen".