68538384 has 60 divisors (see below), whose sum is σ = 192956400. Its totient is φ = 22709952.

The previous prime is 68538341. The next prime is 68538389. The reversal of 68538384 is 48383586.

It is not an unprimeable number, because it can be changed into a prime (68538389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24447 + ... + 27105.

It is an arithmetic number, because the mean of its divisors is an integer number (3215940).

Almost surely, 2^68538384 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 68538384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96478200).

68538384 is an abundant number, since it is smaller than the sum of its proper divisors (124418016).

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

68538384 is a wasteful number, since it uses less digits than its factorization.

68538384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852 (or 2843 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 68538384 is about 8278.7912161136. The cubic root of 68538384 is about 409.2398845435.

The spelling of 68538384 in words is "sixty-eight million, five hundred thirty-eight thousand, three hundred eighty-four".