68428768 has 12 divisors (see below), whose sum is σ = 134719200. Its totient is φ = 34214368.

The previous prime is 68428753. The next prime is 68428793. The reversal of 68428768 is 86782486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069168 + ... + 1069231.

It is an arithmetic number, because the mean of its divisors is an integer number (11226600).

Almost surely, 2^68428768 is an apocalyptic number.

It is an amenable number.

68428768 is a deficient number, since it is larger than the sum of its proper divisors (66290432).

68428768 is a wasteful number, since it uses less digits than its factorization.

68428768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138409 (or 2138401 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 68428768 is about 8272.1682768184. The cubic root of 68428768 is about 409.0215972479.

It can be divided in two parts, 68428 and 768, that added together give a palindrome (69196).

The spelling of 68428768 in words is "sixty-eight million, four hundred twenty-eight thousand, seven hundred sixty-eight".