68392538 has 8 divisors (see below), whose sum is σ = 102655488. Its totient is φ = 34174044.

The previous prime is 68392537. The next prime is 68392543. The reversal of 68392538 is 83529386.

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

It is not an unprimeable number, because it can be changed into a prime (68392531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6956 + ... + 13607.

It is an arithmetic number, because the mean of its divisors is an integer number (12831936).

Almost surely, 2^68392538 is an apocalyptic number.

68392538 is a deficient number, since it is larger than the sum of its proper divisors (34262950).

68392538 is a wasteful number, since it uses less digits than its factorization.

68392538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22228.

The product of its digits is 311040, while the sum is 44.

The square root of 68392538 is about 8269.9781136349. The cubic root of 68392538 is about 408.9493982348.

The spelling of 68392538 in words is "sixty-eight million, three hundred ninety-two thousand, five hundred thirty-eight".