68642860 has 48 divisors (see below), whose sum is σ = 169358112. Its totient is φ = 23040000.

The previous prime is 68642857. The next prime is 68642887. The reversal of 68642860 is 6824686.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9141 + ... + 14860.

It is an arithmetic number, because the mean of its divisors is an integer number (3528294).

Almost surely, 2^68642860 is an apocalyptic number.

It is an amenable number.

68642860 is an abundant number, since it is smaller than the sum of its proper divisors (100715252).

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

68642860 is a wasteful number, since it uses less digits than its factorization.

68642860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24034 (or 24032 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 68642860 is about 8285.0986717118. The cubic root of 68642860 is about 409.4477196147.

The spelling of 68642860 in words is "sixty-eight million, six hundred forty-two thousand, eight hundred sixty".