268582890 has 32 divisors (see below), whose sum is σ = 645267456. Its totient is φ = 71547840.

The previous prime is 268582871. The next prime is 268582901. The reversal of 268582890 is 98285862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28695 + ... + 36885.

It is an arithmetic number, because the mean of its divisors is an integer number (20164608).

Almost surely, 2^268582890 is an apocalyptic number.

268582890 is an abundant number, since it is smaller than the sum of its proper divisors (376684566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268582890 is a wasteful number, since it uses less digits than its factorization.

268582890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9294.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 268582890 is about 16388.4987109863. The cubic root of 268582890 is about 645.1976559069.

The spelling of 268582890 in words is "two hundred sixty-eight million, five hundred eighty-two thousand, eight hundred ninety".