68668448 has 48 divisors (see below), whose sum is σ = 141341760. Its totient is φ = 32806656.

The previous prime is 68668429. The next prime is 68668513. The reversal of 68668448 is 84486686.

It is a junction number, because it is equal to n+sod(n) for n = 68668396 and 68668405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69365 + ... + 70347.

It is an arithmetic number, because the mean of its divisors is an integer number (2944620).

Almost surely, 2^68668448 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 68668448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70670880).

68668448 is an abundant number, since it is smaller than the sum of its proper divisors (72673312).

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

68668448 is a wasteful number, since it uses less digits than its factorization.

68668448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1081 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 68668448 is about 8286.6427460100. The cubic root of 68668448 is about 409.4985899052.

The spelling of 68668448 in words is "sixty-eight million, six hundred sixty-eight thousand, four hundred forty-eight".