68305672 has 64 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 31234560.

The previous prime is 68305669. The next prime is 68305693. The reversal of 68305672 is 27650386.

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 15 ways as a sum of consecutive naturals, for example, 408933 + ... + 409099.

It is an arithmetic number, because the mean of its divisors is an integer number (2182950).

Almost surely, 2^68305672 is an apocalyptic number.

It is an amenable number.

68305672 is an abundant number, since it is smaller than the sum of its proper divisors (71403128).

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

68305672 is a wasteful number, since it uses less digits than its factorization.

68305672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 68305672 is about 8264.7245568137. The cubic root of 68305672 is about 408.7761880680.

The spelling of 68305672 in words is "sixty-eight million, three hundred five thousand, six hundred seventy-two".