278082 has 24 divisors (see below), whose sum is σ = 688896. Its totient is φ = 79416.

The previous prime is 278071. The next prime is 278087. The reversal of 278082 is 280872.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (278087) by changing a digit.

278082 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 11 ways as a sum of consecutive naturals, for example, 978 + ... + 1229.

It is an arithmetic number, because the mean of its divisors is an integer number (28704).

2²⁷⁸⁰⁸² is an apocalyptic number.

278082 is an abundant number, since it is smaller than the sum of its proper divisors (410814).

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

278082 is a wasteful number, since it uses less digits than its factorization.

278082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 278082 is about 527.3348082575. The cubic root of 278082 is about 65.2716051236.

The spelling of 278082 in words is "two hundred seventy-eight thousand, eighty-two".