67368538 has 4 divisors (see below), whose sum is σ = 101052810. Its totient is φ = 33684268.

The previous prime is 67368533. The next prime is 67368557. The reversal of 67368538 is 83586376.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 67354849 + 13689 = 8207^2 + 117^2 .

It is not an unprimeable number, because it can be changed into a prime (67368533) by changing a digit.

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 as a sum of consecutive naturals, namely, 16842133 + ... + 16842136.

Almost surely, 2^67368538 is an apocalyptic number.

67368538 is a deficient number, since it is larger than the sum of its proper divisors (33684272).

67368538 is a wasteful number, since it uses less digits than its factorization.

67368538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33684271.

The product of its digits is 725760, while the sum is 46.

The square root of 67368538 is about 8207.8339408153. The cubic root of 67368538 is about 406.8981427261.

The spelling of 67368538 in words is "sixty-seven million, three hundred sixty-eight thousand, five hundred thirty-eight".