68284188 has 96 divisors (see below), whose sum is σ = 207352320. Its totient is φ = 19025280.

The previous prime is 68284187. The next prime is 68284201. The reversal of 68284188 is 88148286.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68284187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29895 + ... + 32097.

It is an arithmetic number, because the mean of its divisors is an integer number (2159920).

Almost surely, 2^68284188 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 68284188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103676160).

68284188 is an abundant number, since it is smaller than the sum of its proper divisors (139068132).

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

68284188 is a wasteful number, since it uses less digits than its factorization.

68284188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2256 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 68284188 is about 8263.4247137612. The cubic root of 68284188 is about 408.7333264809.

The spelling of 68284188 in words is "sixty-eight million, two hundred eighty-four thousand, one hundred eighty-eight".