68305880 has 16 divisors (see below), whose sum is σ = 153688320. Its totient is φ = 27322336.

The previous prime is 68305873. The next prime is 68305943. The reversal of 68305880 is 8850386.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853784 + ... + 853863.

It is an arithmetic number, because the mean of its divisors is an integer number (9605520).

Almost surely, 2^68305880 is an apocalyptic number.

It is an amenable number.

68305880 is an abundant number, since it is smaller than the sum of its proper divisors (85382440).

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

68305880 is a wasteful number, since it uses less digits than its factorization.

68305880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707658 (or 1707654 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 68305880 is about 8264.7371404056. The cubic root of 68305880 is about 408.7766029938.

The spelling of 68305880 in words is "sixty-eight million, three hundred five thousand, eight hundred eighty".