68195328 has 88 divisors (see below), whose sum is σ = 184721280. Its totient is φ = 22364160.

The previous prime is 68195321. The next prime is 68195353. The reversal of 68195328 is 82359186.

It is a super-2 number, since 2×68195328² = 9301205522055168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68195328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68195321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242548 + ... + 242828.

Almost surely, 2^68195328 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 68195328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92360640).

68195328 is an abundant number, since it is smaller than the sum of its proper divisors (116525952).

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

68195328 is a wasteful number, since it uses less digits than its factorization.

68195328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 365 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 68195328 is about 8258.0462580443. The cubic root of 68195328 is about 408.5559510611. Note that the first 3 decimals are identical.

The spelling of 68195328 in words is "sixty-eight million, one hundred ninety-five thousand, three hundred twenty-eight".