278848 has 14 divisors (see below), whose sum is σ = 553466. Its totient is φ = 139392.

The previous prime is 278843. The next prime is 278849. The reversal of 278848 is 848872.

It can be written as a sum of positive squares in only one way, i.e., 278784 + 64 = 528^2 + 8^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115 + ... + 2242.

2²⁷⁸⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

278848 is a deficient number, since it is larger than the sum of its proper divisors (274618).

278848 is an equidigital number, since it uses as much as digits as its factorization.

278848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369 (or 4359 counting only the distinct ones).

The product of its digits is 28672, while the sum is 37.

The square root of 278848 is about 528.0606025827. The cubic root of 278848 is about 65.3314822003.

The spelling of 278848 in words is "two hundred seventy-eight thousand, eight hundred forty-eight".