218414 has 8 divisors (see below), whose sum is σ = 374448. Its totient is φ = 93600.

The previous prime is 218401. The next prime is 218417. The reversal of 218414 is 414812.

218414 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218417) 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, 7787 + ... + 7814.

It is an arithmetic number, because the mean of its divisors is an integer number (46806).

2²¹⁸⁴¹⁴ is an apocalyptic number.

218414 is a deficient number, since it is larger than the sum of its proper divisors (156034).

218414 is a wasteful number, since it uses less digits than its factorization.

218414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15610.

The product of its digits is 256, while the sum is 20.

The square root of 218414 is about 467.3478361991. The cubic root of 218414 is about 60.2226909748. Note that the first 3 decimals are identical.

The spelling of 218414 in words is "two hundred eighteen thousand, four hundred fourteen".