68428818 has 24 divisors (see below), whose sum is σ = 154709568. Its totient is φ = 21817752.

The previous prime is 68428793. The next prime is 68428819. The reversal of 68428818 is 81882486.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68428819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82230 + ... + 83057.

It is an arithmetic number, because the mean of its divisors is an integer number (6446232).

Almost surely, 2^68428818 is an apocalyptic number.

68428818 is an abundant number, since it is smaller than the sum of its proper divisors (86280750).

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

68428818 is a wasteful number, since it uses less digits than its factorization.

68428818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165318 (or 165315 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 68428818 is about 8272.1712990000. The cubic root of 68428818 is about 409.0216968701.

The spelling of 68428818 in words is "sixty-eight million, four hundred twenty-eight thousand, eight hundred eighteen".