268539956 has 36 divisors (see below), whose sum is σ = 501860268. Its totient is φ = 125703168.

The previous prime is 268539937. The next prime is 268539979. The reversal of 268539956 is 659935862.

It can be written as a sum of positive squares in 6 ways, for example, as 29528356 + 239011600 = 5434^2 + 15460^2 .

It is a super-2 number, since 2×268539956² = 144227415936963872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 268539898 and 268539907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268850 + ... + 269846.

It is an arithmetic number, because the mean of its divisors is an integer number (13940563).

Almost surely, 2^268539956 is an apocalyptic number.

It is an amenable number.

268539956 is a deficient number, since it is larger than the sum of its proper divisors (233320312).

268539956 is a wasteful number, since it uses less digits than its factorization.

268539956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268 (or 1249 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 53.

The square root of 268539956 is about 16387.1887766023. The cubic root of 268539956 is about 645.1632749723.

The spelling of 268539956 in words is "two hundred sixty-eight million, five hundred thirty-nine thousand, nine hundred fifty-six".