70768138 has 8 divisors (see below), whose sum is σ = 121316832. Its totient is φ = 30329196.

The previous prime is 70768129. The next prime is 70768151. The reversal of 70768138 is 83186707.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 70768138.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2527420 + ... + 2527447.

It is an arithmetic number, because the mean of its divisors is an integer number (15164604).

Almost surely, 2^70768138 is an apocalyptic number.

70768138 is a deficient number, since it is larger than the sum of its proper divisors (50548694).

70768138 is a wasteful number, since it uses less digits than its factorization.

70768138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054876.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 70768138 is about 8412.3800437213. The cubic root of 70768138 is about 413.6305330155.

The spelling of 70768138 in words is "seventy million, seven hundred sixty-eight thousand, one hundred thirty-eight".