268690669 has 16 divisors (see below), whose sum is σ = 303069312. Its totient is φ = 236351808.

The previous prime is 268690663. The next prime is 268690687. The reversal of 268690669 is 966096862.

It is a cyclic number.

It is not a de Polignac number, because 268690669 - 2⁵ = 268690637 is a prime.

It is a super-2 number, since 2×268690669² = 144389351215335122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268690663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86074 + ... + 89140.

It is an arithmetic number, because the mean of its divisors is an integer number (18941832).

Almost surely, 2^268690669 is an apocalyptic number.

It is an amenable number.

268690669 is a deficient number, since it is larger than the sum of its proper divisors (34378643).

268690669 is a wasteful number, since it uses less digits than its factorization.

268690669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 268690669 is about 16391.7866323351. The cubic root of 268690669 is about 645.2839476516.

The spelling of 268690669 in words is "two hundred sixty-eight million, six hundred ninety thousand, six hundred sixty-nine".