68289732 has 54 divisors (see below), whose sum is σ = 200809518. Its totient is φ = 19510848.

The previous prime is 68289713. The next prime is 68289763. The reversal of 68289732 is 23798286.

It can be written as a sum of positive squares in only one way, i.e., 65028096 + 3261636 = 8064^2 + 1806^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17593 + ... + 21120.

Almost surely, 2^68289732 is an apocalyptic number.

It is an amenable number.

68289732 is an abundant number, since it is smaller than the sum of its proper divisors (132519786).

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

68289732 is a wasteful number, since it uses less digits than its factorization.

68289732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38737 (or 38725 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 68289732 is about 8263.7601610889. The cubic root of 68289732 is about 408.7443878813.

The spelling of 68289732 in words is "sixty-eight million, two hundred eighty-nine thousand, seven hundred thirty-two".