4218373 has 4 divisors (see below), whose sum is σ = 4224960. Its totient is φ = 4211788.

The previous prime is 4218371. The next prime is 4218377. The reversal of 4218373 is 3738124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4218373 - 2¹ = 4218371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215 + ... + 3652.

It is an arithmetic number, because the mean of its divisors is an integer number (1056240).

Almost surely, 2^4218373 is an apocalyptic number.

It is an amenable number.

4218373 is a deficient number, since it is larger than the sum of its proper divisors (6587).

4218373 is an equidigital number, since it uses as much as digits as its factorization.

4218373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6586.

The product of its digits is 4032, while the sum is 28.

The square root of 4218373 is about 2053.8678146366. The cubic root of 4218373 is about 161.5777884423.

Subtracting from 4218373 its reverse (3738124), we obtain a square (480249 = 693²).

The spelling of 4218373 in words is "four million, two hundred eighteen thousand, three hundred seventy-three".