68226128 has 20 divisors (see below), whose sum is σ = 132762708. Its totient is φ = 33964800.

The previous prime is 68226127. The next prime is 68226143. The reversal of 68226128 is 82162286.

It can be written as a sum of positive squares in 2 ways, for example, as 5626384 + 62599744 = 2372^2 + 7912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68226127) 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, 5423 + ... + 12878.

Almost surely, 2^68226128 is an apocalyptic number.

It is an amenable number.

68226128 is a deficient number, since it is larger than the sum of its proper divisors (64536580).

68226128 is a wasteful number, since it uses less digits than its factorization.

68226128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18542 (or 18536 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 68226128 is about 8259.9108954032. The cubic root of 68226128 is about 408.6174490636.

The spelling of 68226128 in words is "sixty-eight million, two hundred twenty-six thousand, one hundred twenty-eight".