68909232 has 80 divisors (see below), whose sum is σ = 206550272. Its totient is φ = 19388160.

The previous prime is 68909231. The next prime is 68909237. The reversal of 68909232 is 23290986.

It is not an unprimeable number, because it can be changed into a prime (68909231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20982 + ... + 24042.

Almost surely, 2^68909232 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 68909232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103275136).

68909232 is an abundant number, since it is smaller than the sum of its proper divisors (137641040).

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

68909232 is a wasteful number, since it uses less digits than its factorization.

68909232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146 (or 3140 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 68909232 is about 8301.1584733698. The cubic root of 68909232 is about 409.9766633555.

The spelling of 68909232 in words is "sixty-eight million, nine hundred nine thousand, two hundred thirty-two".