68443386 has 32 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 20648880.

The previous prime is 68443379. The next prime is 68443387. The reversal of 68443386 is 68334486.

It is not an unprimeable number, because it can be changed into a prime (68443387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13605 + ... + 17943.

It is an arithmetic number, because the mean of its divisors is an integer number (4687200).

Almost surely, 2^68443386 is an apocalyptic number.

68443386 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68443386 is an abundant number, since it is smaller than the sum of its proper divisors (81547014).

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

68443386 is a wasteful number, since it uses less digits than its factorization.

68443386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594.

The product of its digits is 331776, while the sum is 42.

The square root of 68443386 is about 8273.0517948336. The cubic root of 68443386 is about 409.0507207300.

Subtracting from 68443386 its reverse (68334486), we obtain a square (108900 = 330²).

The spelling of 68443386 in words is "sixty-eight million, four hundred forty-three thousand, three hundred eighty-six".