68443648 has 120 divisors (see below), whose sum is σ = 170734608. Its totient is φ = 26836992.

The previous prime is 68443633. The next prime is 68443651. The reversal of 68443648 is 84634486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 605640 + ... + 605752.

Almost surely, 2^68443648 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 68443648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85367304).

68443648 is an abundant number, since it is smaller than the sum of its proper divisors (102290960).

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

68443648 is a wasteful number, since it uses less digits than its factorization.

68443648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 135 counting only the distinct ones).

The product of its digits is 442368, while the sum is 43.

The square root of 68443648 is about 8273.0676293622. The cubic root of 68443648 is about 409.0512426755.

The spelling of 68443648 in words is "sixty-eight million, four hundred forty-three thousand, six hundred forty-eight".