68228648 has 24 divisors (see below), whose sum is σ = 132505230. Its totient is φ = 32934720.

The previous prime is 68228627. The next prime is 68228651. The reversal of 68228648 is 84682286.

It can be written as a sum of positive squares in 3 ways, for example, as 50098084 + 18130564 = 7078^2 + 4258^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68228599 and 68228608.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1658 + ... + 11798.

Almost surely, 2^68228648 is an apocalyptic number.

It is an amenable number.

68228648 is a deficient number, since it is larger than the sum of its proper divisors (64276582).

68228648 is a wasteful number, since it uses less digits than its factorization.

68228648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205 (or 10172 counting only the distinct ones).

The product of its digits is 294912, while the sum is 44.

The square root of 68228648 is about 8260.0634380131. The cubic root of 68228648 is about 408.6224798991.

The spelling of 68228648 in words is "sixty-eight million, two hundred twenty-eight thousand, six hundred forty-eight".