68078384 has 20 divisors (see below), whose sum is σ = 143893320. Its totient is φ = 30944640.

The previous prime is 68078369. The next prime is 68078401. The reversal of 68078384 is 48387086.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193229 + ... + 193580.

It is an arithmetic number, because the mean of its divisors is an integer number (7194666).

Almost surely, 2^68078384 is an apocalyptic number.

It is an amenable number.

68078384 is an abundant number, since it is smaller than the sum of its proper divisors (75814936).

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

68078384 is a wasteful number, since it uses less digits than its factorization.

68078384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386828 (or 386822 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 68078384 is about 8250.9626105079. The cubic root of 68078384 is about 408.3222815649.

The spelling of 68078384 in words is "sixty-eight million, seventy-eight thousand, three hundred eighty-four".