68919132 has 48 divisors (see below), whose sum is σ = 170214912. Its totient is φ = 21658560.

The previous prime is 68919131. The next prime is 68919181. The reversal of 68919132 is 23191986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68919131) 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, 17838 + ... + 21354.

It is an arithmetic number, because the mean of its divisors is an integer number (3546144).

Almost surely, 2^68919132 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 68919132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85107456).

68919132 is an abundant number, since it is smaller than the sum of its proper divisors (101295780).

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

68919132 is a wasteful number, since it uses less digits than its factorization.

68919132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3616 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 68919132 is about 8301.7547542673. The cubic root of 68919132 is about 409.9962958222.

The spelling of 68919132 in words is "sixty-eight million, nine hundred nineteen thousand, one hundred thirty-two".