268621169 has 8 divisors (see below), whose sum is σ = 277655040. Its totient is φ = 259610400.

The previous prime is 268621153. The next prime is 268621189. The reversal of 268621169 is 961126862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268621169 - 2⁴ = 268621153 is a prime.

It is a super-2 number, since 2×268621169² = 144314664869853122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268621109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19724 + ... + 30434.

It is an arithmetic number, because the mean of its divisors is an integer number (34706880).

Almost surely, 2^268621169 is an apocalyptic number.

It is an amenable number.

268621169 is a deficient number, since it is larger than the sum of its proper divisors (9033871).

268621169 is a wasteful number, since it uses less digits than its factorization.

268621169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11551.

The product of its digits is 62208, while the sum is 41.

The square root of 268621169 is about 16389.6665310799. Note that the first 3 decimals coincide. The cubic root of 268621169 is about 645.2283060944.

The spelling of 268621169 in words is "two hundred sixty-eight million, six hundred twenty-one thousand, one hundred sixty-nine".