68015228 has 24 divisors (see below), whose sum is σ = 122308704. Its totient is φ = 33075200.

The previous prime is 68015221. The next prime is 68015239. The reversal of 68015228 is 82251086.

It is a junction number, because it is equal to n+sod(n) for n = 68015194 and 68015203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68015221) 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 7 ways as a sum of consecutive naturals, for example, 104801 + ... + 105447.

It is an arithmetic number, because the mean of its divisors is an integer number (5096196).

Almost surely, 2^68015228 is an apocalyptic number.

It is an amenable number.

68015228 is a deficient number, since it is larger than the sum of its proper divisors (54293476).

68015228 is a wasteful number, since it uses less digits than its factorization.

68015228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 68015228 is about 8247.1345326725. The cubic root of 68015228 is about 408.1959762725.

The spelling of 68015228 in words is "sixty-eight million, fifteen thousand, two hundred twenty-eight".