268642356 has 24 divisors (see below), whose sum is σ = 629102880. Its totient is φ = 89223072.

The previous prime is 268642351. The next prime is 268642391. The reversal of 268642356 is 653246862.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268642351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37086 + ... + 43733.

It is an arithmetic number, because the mean of its divisors is an integer number (26212620).

Almost surely, 2^268642356 is an apocalyptic number.

It is an amenable number.

268642356 is an abundant number, since it is smaller than the sum of its proper divisors (360460524).

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

268642356 is a wasteful number, since it uses less digits than its factorization.

268642356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81103 (or 81101 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 268642356 is about 16390.3128707173. The cubic root of 268642356 is about 645.2452693799.

The spelling of 268642356 in words is "two hundred sixty-eight million, six hundred forty-two thousand, three hundred fifty-six".