68488272 has 30 divisors (see below), whose sum is σ = 191672442. Its totient is φ = 22829376.

The previous prime is 68488261. The next prime is 68488309. The reversal of 68488272 is 27288486.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 18870336 = 7044^2 + 4344^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237663 + ... + 237950.

Almost surely, 2^68488272 is an apocalyptic number.

It is an amenable number.

68488272 is an abundant number, since it is smaller than the sum of its proper divisors (123184170).

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

68488272 is a wasteful number, since it uses less digits than its factorization.

68488272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475627 (or 475618 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 68488272 is about 8275.7641339033. The cubic root of 68488272 is about 409.1401213255.

The spelling of 68488272 in words is "sixty-eight million, four hundred eighty-eight thousand, two hundred seventy-two".