268537864 has 32 divisors (see below), whose sum is σ = 589478400. Its totient is φ = 112279680.

The previous prime is 268537861. The next prime is 268537877. The reversal of 268537864 is 468735862.

It is a super-2 number, since 2×268537864² = 144225168803364992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (268537861) 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, 56184 + ... + 60775.

It is an arithmetic number, because the mean of its divisors is an integer number (18421200).

Almost surely, 2^268537864 is an apocalyptic number.

It is an amenable number.

268537864 is an abundant number, since it is smaller than the sum of its proper divisors (320940536).

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

268537864 is a wasteful number, since it uses less digits than its factorization.

268537864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117013 (or 117009 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 268537864 is about 16387.1249461277. The cubic root of 268537864 is about 645.1615996349.

The spelling of 268537864 in words is "two hundred sixty-eight million, five hundred thirty-seven thousand, eight hundred sixty-four".