268890682 has 12 divisors (see below), whose sum is σ = 408953070. Its totient is φ = 132598368.

The previous prime is 268890673. The next prime is 268890691. The reversal of 268890682 is 286098862.

It is an interprime number because it is at equal distance from previous prime (268890673) and next prime (268890691).

It can be written as a sum of positive squares in 3 ways, for example, as 183900721 + 84989961 = 13561^2 + 9219^2 .

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, 1957 + ... + 23272.

Almost surely, 2^268890682 is an apocalyptic number.

268890682 is a deficient number, since it is larger than the sum of its proper divisors (140062388).

268890682 is an equidigital number, since it uses as much as digits as its factorization.

268890682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377 (or 25304 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 268890682 is about 16397.8865101573. The cubic root of 268890682 is about 645.4440241274. Note that the first 3 decimals are identical.

The spelling of 268890682 in words is "two hundred sixty-eight million, eight hundred ninety thousand, six hundred eighty-two".