427218 has 16 divisors (see below), whose sum is σ = 932256. Its totient is φ = 129440.

The previous prime is 427213. The next prime is 427237. The reversal of 427218 is 812724.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 427218.

It is not an unprimeable number, because it can be changed into a prime (427213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3171 + ... + 3302.

It is an arithmetic number, because the mean of its divisors is an integer number (58266).

2⁴²⁷²¹⁸ is an apocalyptic number.

427218 is an abundant number, since it is smaller than the sum of its proper divisors (505038).

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

427218 is a wasteful number, since it uses less digits than its factorization.

427218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489.

The product of its digits is 896, while the sum is 24.

The square root of 427218 is about 653.6191551661. The cubic root of 427218 is about 75.3152948866.

It can be divided in two parts, 42 and 7218, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 427218 in words is "four hundred twenty-seven thousand, two hundred eighteen".