278230 has 8 divisors (see below), whose sum is σ = 500832. Its totient is φ = 111288.

The previous prime is 278227. The next prime is 278233. The reversal of 278230 is 32872.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (278227) and next prime (278233).

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

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13902 + ... + 13921.

It is an arithmetic number, because the mean of its divisors is an integer number (62604).

2²⁷⁸²³⁰ is an apocalyptic number.

278230 is a deficient number, since it is larger than the sum of its proper divisors (222602).

278230 is a wasteful number, since it uses less digits than its factorization.

278230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27830.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 278230 is about 527.4751178966. The cubic root of 278230 is about 65.2831826251.

The spelling of 278230 in words is "two hundred seventy-eight thousand, two hundred thirty".