68224028 has 12 divisors (see below), whose sum is σ = 119614152. Its totient is φ = 34048560.

The previous prime is 68224027. The next prime is 68224033. The reversal of 68224028 is 82042286.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68223985 and 68224003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68224021) 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 3 ways as a sum of consecutive naturals, for example, 13403 + ... + 17778.

It is an arithmetic number, because the mean of its divisors is an integer number (9967846).

Almost surely, 2^68224028 is an apocalyptic number.

It is an amenable number.

68224028 is a deficient number, since it is larger than the sum of its proper divisors (51390124).

68224028 is a wasteful number, since it uses less digits than its factorization.

68224028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31732 (or 31730 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 68224028 is about 8259.7837744096. The cubic root of 68224028 is about 408.6132566059.

The spelling of 68224028 in words is "sixty-eight million, two hundred twenty-four thousand, twenty-eight".