68443056 has 100 divisors (see below), whose sum is σ = 216147624. Its totient is φ = 20736000.

The previous prime is 68443043. The next prime is 68443061. The reversal of 68443056 is 65034486.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 68443056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11856 + ... + 16656.

Almost surely, 2^68443056 is an apocalyptic number.

68443056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68443056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108073812).

68443056 is an abundant number, since it is smaller than the sum of its proper divisors (147704568).

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

68443056 is a wasteful number, since it uses less digits than its factorization.

68443056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4817 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 68443056 is about 8273.0318505370. The cubic root of 68443056 is about 409.0500633158.

It can be divided in two parts, 684430 and 56, that added together give a palindrome (684486).

The spelling of 68443056 in words is "sixty-eight million, four hundred forty-three thousand, fifty-six".