68305232 has 10 divisors (see below), whose sum is σ = 132341418. Its totient is φ = 34152608.

The previous prime is 68305231. The next prime is 68305249. The reversal of 68305232 is 23250386.

It can be written as a sum of positive squares in only one way, i.e., 66520336 + 1784896 = 8156^2 + 1336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68305195 and 68305204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68305231) by changing a digit.

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 as a sum of consecutive naturals, namely, 2134523 + ... + 2134554.

Almost surely, 2^68305232 is an apocalyptic number.

It is an amenable number.

68305232 is a deficient number, since it is larger than the sum of its proper divisors (64036186).

68305232 is a wasteful number, since it uses less digits than its factorization.

68305232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269085 (or 4269079 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 68305232 is about 8264.6979376139. The cubic root of 68305232 is about 408.7753103375.

The spelling of 68305232 in words is "sixty-eight million, three hundred five thousand, two hundred thirty-two".