268861394 has 8 divisors (see below), whose sum is σ = 407285388. Its totient is φ = 133099600.

The previous prime is 268861393. The next prime is 268861403. The reversal of 268861394 is 493168862.

268861394 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 263640169 + 5221225 = 16237^2 + 2285^2 .

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

It is not an unprimeable number, because it can be changed into a prime (268861393) 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, 665297 + ... + 665700.

Almost surely, 2^268861394 is an apocalyptic number.

268861394 is a deficient number, since it is larger than the sum of its proper divisors (138423994).

268861394 is a wasteful number, since it uses less digits than its factorization.

268861394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331100.

The product of its digits is 497664, while the sum is 47.

The square root of 268861394 is about 16396.9934439214. The cubic root of 268861394 is about 645.4205890139.

The spelling of 268861394 in words is "two hundred sixty-eight million, eight hundred sixty-one thousand, three hundred ninety-four".