268778 has 8 divisors (see below), whose sum is σ = 420768. Its totient is φ = 128524.

The previous prime is 268777. The next prime is 268781. The reversal of 268778 is 877862.

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

It is a super-2 number, since 2×268778² = 144483226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2876 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (52596).

2²⁶⁸⁷⁷⁸ is an apocalyptic number.

268778 is a deficient number, since it is larger than the sum of its proper divisors (151990).

268778 is a wasteful number, since it uses less digits than its factorization.

268778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868.

The product of its digits is 37632, while the sum is 38.

The square root of 268778 is about 518.4380387279. The cubic root of 268778 is about 64.5353851069.

The spelling of 268778 in words is "two hundred sixty-eight thousand, seven hundred seventy-eight".