68818336 has 24 divisors (see below), whose sum is σ = 138793284. Its totient is φ = 33569280.

The previous prime is 68818333. The next prime is 68818339. The reversal of 68818336 is 63381886.

It is an interprime number because it is at equal distance from previous prime (68818333) and next prime (68818339).

It can be written as a sum of positive squares in 2 ways, for example, as 61528336 + 7290000 = 7844^2 + 2700^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68818292 and 68818301.

It is not an unprimeable number, because it can be changed into a prime (68818331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24915 + ... + 27538.

Almost surely, 2^68818336 is an apocalyptic number.

It is an amenable number.

68818336 is an abundant number, since it is smaller than the sum of its proper divisors (69974948).

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

68818336 is a wasteful number, since it uses less digits than its factorization.

68818336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52504 (or 52496 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 68818336 is about 8295.6817682455. The cubic root of 68818336 is about 409.7963215983.

The spelling of 68818336 in words is "sixty-eight million, eight hundred eighteen thousand, three hundred thirty-six".