268312478 has 8 divisors (see below), whose sum is σ = 459964272. Its totient is φ = 114991056.

The previous prime is 268312463. The next prime is 268312481. The reversal of 268312478 is 874213862.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9582575 + ... + 9582602.

It is an arithmetic number, because the mean of its divisors is an integer number (57495534).

Almost surely, 2^268312478 is an apocalyptic number.

268312478 is a deficient number, since it is larger than the sum of its proper divisors (191651794).

268312478 is a wasteful number, since it uses less digits than its factorization.

268312478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19165186.

The product of its digits is 129024, while the sum is 41.

The square root of 268312478 is about 16380.2465793406. The cubic root of 268312478 is about 644.9810526654.

The spelling of 268312478 in words is "two hundred sixty-eight million, three hundred twelve thousand, four hundred seventy-eight".