278852252 has 12 divisors (see below), whose sum is σ = 557704560. Its totient is φ = 119508096.

The previous prime is 278852237. The next prime is 278852263. The reversal of 278852252 is 252258872.

278852252 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4979477 + ... + 4979532.

It is an arithmetic number, because the mean of its divisors is an integer number (46475380).

Almost surely, 2^278852252 is an apocalyptic number.

It is an amenable number.

278852252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

278852252 is a wasteful number, since it uses less digits than its factorization.

278852252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9959020 (or 9959018 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 278852252 is about 16698.8697821140. The cubic root of 278852252 is about 653.3181426659.

The spelling of 278852252 in words is "two hundred seventy-eight million, eight hundred fifty-two thousand, two hundred fifty-two".