268334690 has 16 divisors (see below), whose sum is σ = 520156728. Its totient is φ = 99077376.

The previous prime is 268334623. The next prime is 268334699. The reversal of 268334690 is 96433862.

It can be written as a sum of positive squares in 4 ways, for example, as 177875569 + 90459121 = 13337^2 + 9511^2 .

It is a super-2 number, since 2×268334690² = 144007011714792200, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (268334699) 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 7 ways as a sum of consecutive naturals, for example, 1031927 + ... + 1032186.

Almost surely, 2^268334690 is an apocalyptic number.

268334690 is a deficient number, since it is larger than the sum of its proper divisors (251822038).

268334690 is a wasteful number, since it uses less digits than its factorization.

268334690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064133.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 268334690 is about 16380.9245770805. The cubic root of 268334690 is about 644.9988502273.

It can be divided in two parts, 2683 and 34690, that added together give a palindrome (37373).

The spelling of 268334690 in words is "two hundred sixty-eight million, three hundred thirty-four thousand, six hundred ninety".