278252 has 12 divisors (see below), whose sum is σ = 524496. Its totient is φ = 128400.

The previous prime is 278237. The next prime is 278261. The reversal of 278252 is 252872.

278252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a d-powerful number, because it can be written as 2² + 7³ + 2⁷ + 8 + 5⁶ + 2¹⁸ .

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624 + ... + 2727.

It is an arithmetic number, because the mean of its divisors is an integer number (43708).

2²⁷⁸²⁵² is an apocalyptic number.

It is an amenable number.

278252 is a deficient number, since it is larger than the sum of its proper divisors (246244).

278252 is a wasteful number, since it uses less digits than its factorization.

278252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368 (or 5366 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 278252 is about 527.4959715486. The cubic root of 278252 is about 65.2849032545.

The spelling of 278252 in words is "two hundred seventy-eight thousand, two hundred fifty-two".