268439578 has 16 divisors (see below), whose sum is σ = 458364096. Its totient is φ = 116712640.

The previous prime is 268439491. The next prime is 268439579. The reversal of 268439578 is 875934862.

It is not an unprimeable number, because it can be changed into a prime (268439579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264751 + ... + 265762.

It is an arithmetic number, because the mean of its divisors is an integer number (28647756).

Almost surely, 2^268439578 is an apocalyptic number.

268439578 is a deficient number, since it is larger than the sum of its proper divisors (189924518).

268439578 is a wasteful number, since it uses less digits than its factorization.

268439578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530549.

The product of its digits is 2903040, while the sum is 52.

The square root of 268439578 is about 16384.1257929741. The cubic root of 268439578 is about 645.0828794006.

The spelling of 268439578 in words is "two hundred sixty-eight million, four hundred thirty-nine thousand, five hundred seventy-eight".