268661898 has 12 divisors (see below), whose sum is σ = 582100818. Its totient is φ = 89553960.

The previous prime is 268661879. The next prime is 268661909. The reversal of 268661898 is 898166862.

It is a happy number.

268661898 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 only one way, i.e., 214241769 + 54420129 = 14637^2 + 7377^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7462813 + ... + 7462848.

Almost surely, 2^268661898 is an apocalyptic number.

268661898 is an abundant number, since it is smaller than the sum of its proper divisors (313438920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268661898 is a wasteful number, since it uses less digits than its factorization.

268661898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14925669 (or 14925666 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 268661898 is about 16390.9090046892. The cubic root of 268661898 is about 645.2609148121.

The spelling of 268661898 in words is "two hundred sixty-eight million, six hundred sixty-one thousand, eight hundred ninety-eight".