278298 has 12 divisors (see below), whose sum is σ = 603018. Its totient is φ = 92760.

The previous prime is 278279. The next prime is 278321. The reversal of 278298 is 892872.

It can be written as a sum of positive squares in only one way, i.e., 263169 + 15129 = 513^2 + 123^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7713 + ... + 7748.

2²⁷⁸²⁹⁸ is an apocalyptic number.

278298 is an abundant number, since it is smaller than the sum of its proper divisors (324720).

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

278298 is a wasteful number, since it uses less digits than its factorization.

278298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15469 (or 15466 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 278298 is about 527.5395719754. The cubic root of 278298 is about 65.2885006411.

It can be divided in two parts, 278 and 298, that added together give a square (576 = 24²).

The spelling of 278298 in words is "two hundred seventy-eight thousand, two hundred ninety-eight".