268909047 has 12 divisors (see below), whose sum is σ = 423735624. Its totient is φ = 162975120.

The previous prime is 268909027. The next prime is 268909049. The reversal of 268909047 is 740909862.

It is a happy number.

It is not a de Polignac number, because 268909047 - 2¹⁹ = 268384759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268908993 and 268909011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268909049) 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, 1358028 + ... + 1358225.

It is an arithmetic number, because the mean of its divisors is an integer number (35311302).

Almost surely, 2^268909047 is an apocalyptic number.

268909047 is a deficient number, since it is larger than the sum of its proper divisors (154826577).

268909047 is a wasteful number, since it uses less digits than its factorization.

268909047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716270 (or 2716267 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 268909047 is about 16398.4464812982. The cubic root of 268909047 is about 645.4587182150.

It can be divided in two parts, 26890 and 9047, that added together give a cube (35937 = 33³).

The spelling of 268909047 in words is "two hundred sixty-eight million, nine hundred nine thousand, forty-seven".