68442188 has 12 divisors (see below), whose sum is σ = 119940240. Its totient is φ = 34173552.

The previous prime is 68442169. The next prime is 68442223. The reversal of 68442188 is 88124486.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8543 + ... + 14486.

It is an arithmetic number, because the mean of its divisors is an integer number (9995020).

Almost surely, 2^68442188 is an apocalyptic number.

It is an amenable number.

68442188 is a deficient number, since it is larger than the sum of its proper divisors (51498052).

68442188 is a wasteful number, since it uses less digits than its factorization.

68442188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23776 (or 23774 counting only the distinct ones).

The product of its digits is 98304, while the sum is 41.

The square root of 68442188 is about 8272.9793907636. The cubic root of 68442188 is about 409.0483341073.

The spelling of 68442188 in words is "sixty-eight million, four hundred forty-two thousand, one hundred eighty-eight".