68672268 has 72 divisors (see below), whose sum is σ = 201158048. Its totient is φ = 19346688.

The previous prime is 68672249. The next prime is 68672269. The reversal of 68672268 is 86227686.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68672269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16530 + ... + 20262.

Almost surely, 2^68672268 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 68672268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100579024).

68672268 is an abundant number, since it is smaller than the sum of its proper divisors (132485780).

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

68672268 is a wasteful number, since it uses less digits than its factorization.

68672268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823 (or 3818 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 68672268 is about 8286.8732342181. The cubic root of 68672268 is about 409.5061831821.

The spelling of 68672268 in words is "sixty-eight million, six hundred seventy-two thousand, two hundred sixty-eight".