268909533 has 12 divisors (see below), whose sum is σ = 394793308. Its totient is φ = 176333760.

The previous prime is 268909523. The next prime is 268909541. The reversal of 268909533 is 335909862.

268909533 is a `hidden beast` number, since 26 + 8 + 90 + 9 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9474084 + 259435449 = 3078^2 + 16107^2 .

It is not a de Polignac number, because 268909533 - 2⁴ = 268909517 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 (268909523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244360 + ... + 245457.

Almost surely, 2^268909533 is an apocalyptic number.

It is an amenable number.

268909533 is a deficient number, since it is larger than the sum of its proper divisors (125883775).

268909533 is a wasteful number, since it uses less digits than its factorization.

268909533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489884 (or 489881 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 268909533 is about 16398.4612997683. The cubic root of 268909533 is about 645.4591070611.

The spelling of 268909533 in words is "two hundred sixty-eight million, nine hundred nine thousand, five hundred thirty-three".