68443078 has 24 divisors (see below), whose sum is σ = 117098856. Its totient is φ = 29752800.

The previous prime is 68443061. The next prime is 68443079. The reversal of 68443078 is 87034486.

It is a super-2 number, since 2×68443078² = 9368909852228168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68443078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68443079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8698 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (4879119).

Almost surely, 2^68443078 is an apocalyptic number.

68443078 is a deficient number, since it is larger than the sum of its proper divisors (48655778).

68443078 is a wasteful number, since it uses less digits than its factorization.

68443078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940 (or 5917 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 68443078 is about 8273.0331801583. The cubic root of 68443078 is about 409.0501071435.

The spelling of 68443078 in words is "sixty-eight million, four hundred forty-three thousand, seventy-eight".