278274 has 16 divisors (see below), whose sum is σ = 586080. Its totient is φ = 87840.

The previous prime is 278269. The next prime is 278279. The reversal of 278274 is 472872.

It is an interprime number because it is at equal distance from previous prime (278269) and next prime (278279).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 278274.

It is not an unprimeable number, because it can be changed into a prime (278279) by changing a digit.

278274 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107 + ... + 1334.

It is an arithmetic number, because the mean of its divisors is an integer number (36630).

2²⁷⁸²⁷⁴ is an apocalyptic number.

278274 is an abundant number, since it is smaller than the sum of its proper divisors (307806).

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

278274 is a wasteful number, since it uses less digits than its factorization.

278274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465.

The product of its digits is 6272, while the sum is 30.

The square root of 278274 is about 527.5168243762. The cubic root of 278274 is about 65.2866237932.

The spelling of 278274 in words is "two hundred seventy-eight thousand, two hundred seventy-four".