268683409 has 4 divisors (see below), whose sum is σ = 268776000. Its totient is φ = 268590820.

The previous prime is 268683397. The next prime is 268683413. The reversal of 268683409 is 904386862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268683409 - 2⁷ = 268683281 is a prime.

It is a super-2 number, since 2×268683409² = 144381548543722562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268683439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41797 + ... + 47794.

It is an arithmetic number, because the mean of its divisors is an integer number (67194000).

Almost surely, 2^268683409 is an apocalyptic number.

It is an amenable number.

268683409 is a deficient number, since it is larger than the sum of its proper divisors (92591).

268683409 is an equidigital number, since it uses as much as digits as its factorization.

268683409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92590.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 268683409 is about 16391.5651784691. The cubic root of 268683409 is about 645.2781357593.

The spelling of 268683409 in words is "two hundred sixty-eight million, six hundred eighty-three thousand, four hundred nine".