268509354 has 16 divisors (see below), whose sum is σ = 546121440. Its totient is φ = 87986000.

The previous prime is 268509343. The next prime is 268509377. The reversal of 268509354 is 453905862.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378897 + ... + 379604.

It is an arithmetic number, because the mean of its divisors is an integer number (34132590).

Almost surely, 2^268509354 is an apocalyptic number.

268509354 is an abundant number, since it is smaller than the sum of its proper divisors (277612086).

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

268509354 is a wasteful number, since it uses less digits than its factorization.

268509354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758565.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 268509354 is about 16386.2550328011. The cubic root of 268509354 is about 645.1387670904.

The spelling of 268509354 in words is "two hundred sixty-eight million, five hundred nine thousand, three hundred fifty-four".