214278 has 16 divisors (see below), whose sum is σ = 435456. Its totient is φ = 70280.

The previous prime is 214259. The next prime is 214283. The reversal of 214278 is 872412.

It is a super-2 number, since 2×214278² = 91830122568, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 214278.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175 + ... + 677.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2²¹⁴²⁷⁸ is an apocalyptic number.

214278 is an abundant number, since it is smaller than the sum of its proper divisors (221178).

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

214278 is a wasteful number, since it uses less digits than its factorization.

214278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579.

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

The square root of 214278 is about 462.9017174304. The cubic root of 214278 is about 59.8401299601.

The spelling of 214278 in words is "two hundred fourteen thousand, two hundred seventy-eight".