278004068 has 12 divisors (see below), whose sum is σ = 487574892. Its totient is φ = 138696960.

The previous prime is 278004017. The next prime is 278004071. The reversal of 278004068 is 860400872.

278004068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 162613504 + 115390564 = 12752^2 + 10742^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 74213 + ... + 77868.

It is an arithmetic number, because the mean of its divisors is an integer number (40631241).

Almost surely, 2^278004068 is an apocalyptic number.

It is an amenable number.

278004068 is a deficient number, since it is larger than the sum of its proper divisors (209570824).

278004068 is a wasteful number, since it uses less digits than its factorization.

278004068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152542 (or 152540 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 278004068 is about 16673.4539913001. The cubic root of 278004068 is about 652.6550713576.

The spelling of 278004068 in words is "two hundred seventy-eight million, four thousand, sixty-eight".