68884480 has 144 divisors (see below), whose sum is σ = 195184080. Its totient is φ = 22855680.

The previous prime is 68884463. The next prime is 68884489. The reversal of 68884480 is 8448886.

It is a self number, because there is not a number n which added to its sum of digits gives 68884480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68884489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2222065 + ... + 2222095.

It is an arithmetic number, because the mean of its divisors is an integer number (1355445).

Almost surely, 2^68884480 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 68884480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97592040).

68884480 is an abundant number, since it is smaller than the sum of its proper divisors (126299600).

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

68884480 is an equidigital number, since it uses as much as digits as its factorization.

68884480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 46.

The square root of 68884480 is about 8299.6674632180. The cubic root of 68884480 is about 409.9275699934.

The spelling of 68884480 in words is "sixty-eight million, eight hundred eighty-four thousand, four hundred eighty".