278412068 has 24 divisors (see below), whose sum is σ = 539452704. Its totient is φ = 124660800.

The previous prime is 278412059. The next prime is 278412089. The reversal of 278412068 is 860214872.

278412068 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

278412068 is strictly pandigital in base 9.

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 7 ways as a sum of consecutive naturals, for example, 44273 + ... + 50168.

It is an arithmetic number, because the mean of its divisors is an integer number (22477196).

Almost surely, 2^278412068 is an apocalyptic number.

It is an amenable number.

278412068 is a deficient number, since it is larger than the sum of its proper divisors (261040636).

278412068 is a wasteful number, since it uses less digits than its factorization.

278412068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94523 (or 94521 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 278412068 is about 16685.6845229676. The cubic root of 278412068 is about 652.9741951159.

The spelling of 278412068 in words is "two hundred seventy-eight million, four hundred twelve thousand, sixty-eight".