278200 has 48 divisors (see below), whose sum is σ = 703080. Its totient is φ = 101760.

The previous prime is 278191. The next prime is 278207. The reversal of 278200 is 2872.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

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 (278207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2547 + ... + 2653.

2²⁷⁸²⁰⁰ is an apocalyptic number.

278200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351540).

278200 is an abundant number, since it is smaller than the sum of its proper divisors (424880).

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

278200 is a wasteful number, since it uses less digits than its factorization.

278200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 278200 is about 527.4466797696. The cubic root of 278200 is about 65.2808361661.

The spelling of 278200 in words is "two hundred seventy-eight thousand, two hundred".