75681238 has 8 divisors (see below), whose sum is σ = 113740488. Its totient is φ = 37767744.

The previous prime is 75681223. The next prime is 75681259. The reversal of 75681238 is 83218657.

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 75681238.

It is a congruent number.

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, 35131 + ... + 37222.

It is an arithmetic number, because the mean of its divisors is an integer number (14217561).

Almost surely, 2^75681238 is an apocalyptic number.

75681238 is a deficient number, since it is larger than the sum of its proper divisors (38059250).

75681238 is a wasteful number, since it uses less digits than its factorization.

75681238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72878.

The product of its digits is 80640, while the sum is 40.

The square root of 75681238 is about 8699.4964222074. The cubic root of 75681238 is about 422.9893269685.

The spelling of 75681238 in words is "seventy-five million, six hundred eighty-one thousand, two hundred thirty-eight".