68208080 has 40 divisors (see below), whose sum is σ = 167915592. Its totient is φ = 25677824.

The previous prime is 68208079. The next prime is 68208083. The reversal of 68208080 is 8080286.

It can be written as a sum of positive squares in 4 ways, for example, as 14684224 + 53523856 = 3832^2 + 7316^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68208083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23717 + ... + 26436.

Almost surely, 2^68208080 is an apocalyptic number.

It is an amenable number.

68208080 is an abundant number, since it is smaller than the sum of its proper divisors (99707512).

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

68208080 is a wasteful number, since it uses less digits than its factorization.

68208080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50183 (or 50177 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 68208080 is about 8258.8183174108. The cubic root of 68208080 is about 408.5814150772.

The spelling of 68208080 in words is "sixty-eight million, two hundred eight thousand, eighty".