268486493 has 4 divisors (see below), whose sum is σ = 292894368. Its totient is φ = 244078620.

The previous prime is 268486489. The next prime is 268486501. The reversal of 268486493 is 394684862.

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 268486493 - 2² = 268486489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268486483) 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 3 ways as a sum of consecutive naturals, for example, 12203921 + ... + 12203942.

It is an arithmetic number, because the mean of its divisors is an integer number (73223592).

Almost surely, 2^268486493 is an apocalyptic number.

It is an amenable number.

268486493 is a deficient number, since it is larger than the sum of its proper divisors (24407875).

268486493 is a wasteful number, since it uses less digits than its factorization.

268486493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24407874.

The product of its digits is 1990656, while the sum is 50.

The square root of 268486493 is about 16385.5574516096. The cubic root of 268486493 is about 645.1204574416.

The spelling of 268486493 in words is "two hundred sixty-eight million, four hundred eighty-six thousand, four hundred ninety-three".