268217770 has 8 divisors (see below), whose sum is σ = 482792004. Its totient is φ = 107287104.

The previous prime is 268217759. The next prime is 268217779. The reversal of 268217770 is 77712862.

268217770 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 266897569 + 1320201 = 16337^2 + 1149^2 .

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 (268217779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13410879 + ... + 13410898.

Almost surely, 2^268217770 is an apocalyptic number.

268217770 is a deficient number, since it is larger than the sum of its proper divisors (214574234).

268217770 is a wasteful number, since it uses less digits than its factorization.

268217770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26821784.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 268217770 is about 16377.3554031168. The cubic root of 268217770 is about 644.9051560161.

The spelling of 268217770 in words is "two hundred sixty-eight million, two hundred seventeen thousand, seven hundred seventy".