268647372 has 72 divisors (see below), whose sum is σ = 779041536. Its totient is φ = 76464864.

The previous prime is 268647371. The next prime is 268647409. The reversal of 268647372 is 273746862.

It is not an unprimeable number, because it can be changed into a prime (268647371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69433 + ... + 73199.

Almost surely, 2^268647372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268647372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389520768).

268647372 is an abundant number, since it is smaller than the sum of its proper divisors (510394164).

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

268647372 is a wasteful number, since it uses less digits than its factorization.

268647372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067 (or 4062 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 268647372 is about 16390.4658872163. The cubic root of 268647372 is about 645.2492852893.

The spelling of 268647372 in words is "two hundred sixty-eight million, six hundred forty-seven thousand, three hundred seventy-two".