68644342 has 8 divisors (see below), whose sum is σ = 110887056. Its totient is φ = 31681992.

The previous prime is 68644339. The next prime is 68644357. The reversal of 68644342 is 24344686.

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

It is a super-2 number, since 2×68644342² = 9424091377225928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320058 + ... + 1320109.

It is an arithmetic number, because the mean of its divisors is an integer number (13860882).

Almost surely, 2^68644342 is an apocalyptic number.

68644342 is a deficient number, since it is larger than the sum of its proper divisors (42242714).

68644342 is a wasteful number, since it uses less digits than its factorization.

68644342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640182.

The product of its digits is 110592, while the sum is 37.

The square root of 68644342 is about 8285.1881089086. The cubic root of 68644342 is about 409.4506662536.

It can be divided in two parts, 68644 and 342, that added together give a palindrome (68986).

The spelling of 68644342 in words is "sixty-eight million, six hundred forty-four thousand, three hundred forty-two".