4723218 has 32 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 1540080.

The previous prime is 4723207. The next prime is 4723219. The reversal of 4723218 is 8123274.

4723218 is nontrivially palindromic in base 8.

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

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4723191 and 4723200.

It is not an unprimeable number, because it can be changed into a prime (4723219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1608 + ... + 3468.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

Almost surely, 2^4723218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4723218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5362560).

4723218 is an abundant number, since it is smaller than the sum of its proper divisors (6001902).

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

4723218 is a wasteful number, since it uses less digits than its factorization.

4723218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1913 counting only the distinct ones).

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

The square root of 4723218 is about 2173.2965743313. The cubic root of 4723218 is about 167.7822433825.

The spelling of 4723218 in words is "four million, seven hundred twenty-three thousand, two hundred eighteen".