268293005 has 4 divisors (see below), whose sum is σ = 321951612. Its totient is φ = 214634400.

The previous prime is 268292989. The next prime is 268293013. The reversal of 268293005 is 500392862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500392862 = 2 ⋅250196431.

It can be written as a sum of positive squares in 2 ways, for example, as 181225444 + 87067561 = 13462^2 + 9331^2 .

It is not a de Polignac number, because 268293005 - 2⁴ = 268292989 is a prime.

It is a super-2 number, since 2×268293005² = 143962273063860050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26829296 + ... + 26829305.

It is an arithmetic number, because the mean of its divisors is an integer number (80487903).

Almost surely, 2^268293005 is an apocalyptic number.

It is an amenable number.

268293005 is a deficient number, since it is larger than the sum of its proper divisors (53658607).

268293005 is an equidigital number, since it uses as much as digits as its factorization.

268293005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53658606.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 268293005 is about 16379.6521635839. The cubic root of 268293005 is about 644.9654489434.

The spelling of 268293005 in words is "two hundred sixty-eight million, two hundred ninety-three thousand, five".