68307888 has 120 divisors (see below), whose sum is σ = 204500800. Its totient is φ = 19578240.

The previous prime is 68307871. The next prime is 68307917. The reversal of 68307888 is 88870386.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110043 + ... + 110661.

Almost surely, 2^68307888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68307888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102250400).

68307888 is an abundant number, since it is smaller than the sum of its proper divisors (136192912).

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

68307888 is a wasteful number, since it uses less digits than its factorization.

68307888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 68307888 is about 8264.8586194804. The cubic root of 68307888 is about 408.7806085805.

The spelling of 68307888 in words is "sixty-eight million, three hundred seven thousand, eight hundred eighty-eight".