278604248 has 16 divisors (see below), whose sum is σ = 562566480. Its totient is φ = 128586528.

The previous prime is 278604241. The next prime is 278604253. The reversal of 278604248 is 842406872.

278604248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278604241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339340 + ... + 1339547.

It is an arithmetic number, because the mean of its divisors is an integer number (35160405).

Almost surely, 2^278604248 is an apocalyptic number.

It is an amenable number.

278604248 is an abundant number, since it is smaller than the sum of its proper divisors (283962232).

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

278604248 is a wasteful number, since it uses less digits than its factorization.

278604248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678906 (or 2678902 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 278604248 is about 16691.4423582865. The cubic root of 278604248 is about 653.1244037845.

The spelling of 278604248 in words is "two hundred seventy-eight million, six hundred four thousand, two hundred forty-eight".