68442186 has 32 divisors (see below), whose sum is σ = 140574528. Its totient is φ = 22206080.

The previous prime is 68442169. The next prime is 68442223. The reversal of 68442186 is 68124486.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42781 + ... + 44351.

It is an arithmetic number, because the mean of its divisors is an integer number (4392954).

Almost surely, 2^68442186 is an apocalyptic number.

68442186 is an abundant number, since it is smaller than the sum of its proper divisors (72132342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68442186 is a wasteful number, since it uses less digits than its factorization.

68442186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766.

The product of its digits is 73728, while the sum is 39.

The square root of 68442186 is about 8272.9792698882. The cubic root of 68442186 is about 409.0483301229.

The spelling of 68442186 in words is "sixty-eight million, four hundred forty-two thousand, one hundred eighty-six".