68240342 has 8 divisors (see below), whose sum is σ = 102446976. Its totient is φ = 34091352.

The previous prime is 68240323. The next prime is 68240353. The reversal of 68240342 is 24304286.

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

It is a super-3 number, since 3×68240342³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11318 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (12805872).

Almost surely, 2^68240342 is an apocalyptic number.

68240342 is a deficient number, since it is larger than the sum of its proper divisors (34206634).

68240342 is a wasteful number, since it uses less digits than its factorization.

68240342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28822.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 68240342 is about 8260.7712714976. The cubic root of 68240342 is about 408.6458237507.

The spelling of 68240342 in words is "sixty-eight million, two hundred forty thousand, three hundred forty-two".