268904078 has 4 divisors (see below), whose sum is σ = 403356120. Its totient is φ = 134452038.

The previous prime is 268904059. The next prime is 268904089. The reversal of 268904078 is 870409862.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 67226018 + ... + 67226021.

It is an arithmetic number, because the mean of its divisors is an integer number (100839030).

Almost surely, 2^268904078 is an apocalyptic number.

268904078 is a deficient number, since it is larger than the sum of its proper divisors (134452042).

268904078 is a wasteful number, since it uses less digits than its factorization.

268904078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134452041.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 268904078 is about 16398.2949723439. The cubic root of 268904078 is about 645.4547425162.

The spelling of 268904078 in words is "two hundred sixty-eight million, nine hundred four thousand, seventy-eight".