68868384 has 96 divisors (see below), whose sum is σ = 196580160. Its totient is φ = 20984832.

The previous prime is 68868313. The next prime is 68868409. The reversal of 68868384 is 48386886.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173274 + ... + 173670.

It is an arithmetic number, because the mean of its divisors is an integer number (2047710).

Almost surely, 2^68868384 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 68868384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98290080).

68868384 is an abundant number, since it is smaller than the sum of its proper divisors (127711776).

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

68868384 is a wasteful number, since it uses less digits than its factorization.

68868384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 554 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 68868384 is about 8298.6977291621. The cubic root of 68868384 is about 409.8956387168.

The spelling of 68868384 in words is "sixty-eight million, eight hundred sixty-eight thousand, three hundred eighty-four".