68730032 has 20 divisors (see below), whose sum is σ = 152188176. Its totient is φ = 29455680.

The previous prime is 68730017. The next prime is 68730037. The reversal of 68730032 is 23003786.

It is a junction number, because it is equal to n+sod(n) for n = 68729977 and 68730004.

It is not an unprimeable number, because it can be changed into a prime (68730037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306719 + ... + 306942.

Almost surely, 2^68730032 is an apocalyptic number.

It is an amenable number.

68730032 is an abundant number, since it is smaller than the sum of its proper divisors (83458144).

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

68730032 is a wasteful number, since it uses less digits than its factorization.

68730032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613676 (or 613670 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 68730032 is about 8290.3577727382. The cubic root of 68730032 is about 409.6209703517.

The spelling of 68730032 in words is "sixty-eight million, seven hundred thirty thousand, thirty-two".