268886457 has 12 divisors (see below), whose sum is σ = 443876160. Its totient is φ = 153649368.

The previous prime is 268886447. The next prime is 268886459. The reversal of 268886457 is 754688862.

It is not a de Polignac number, because 268886457 - 2⁴ = 268886441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268886459) 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, 2133957 + ... + 2134082.

It is an arithmetic number, because the mean of its divisors is an integer number (36989680).

Almost surely, 2^268886457 is an apocalyptic number.

It is an amenable number.

268886457 is a deficient number, since it is larger than the sum of its proper divisors (174989703).

268886457 is a wasteful number, since it uses less digits than its factorization.

268886457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268052 (or 4268049 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The square root of 268886457 is about 16397.7576820735. The cubic root of 268886457 is about 645.4406435525.

The spelling of 268886457 in words is "two hundred sixty-eight million, eight hundred eighty-six thousand, four hundred fifty-seven".