68842238 has 4 divisors (see below), whose sum is σ = 103263360. Its totient is φ = 34421118.

The previous prime is 68842229. The next prime is 68842247. The reversal of 68842238 is 83224886.

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

It is an interprime number because it is at equal distance from previous prime (68842229) and next prime (68842247).

It is a junction number, because it is equal to n+sod(n) for n = 68842195 and 68842204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210558 + ... + 17210561.

It is an arithmetic number, because the mean of its divisors is an integer number (25815840).

Almost surely, 2^68842238 is an apocalyptic number.

68842238 is a deficient number, since it is larger than the sum of its proper divisors (34421122).

68842238 is a wasteful number, since it uses less digits than its factorization.

68842238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34421121.

The product of its digits is 147456, while the sum is 41.

The square root of 68842238 is about 8297.1222722098. The cubic root of 68842238 is about 409.8437596237.

The spelling of 68842238 in words is "sixty-eight million, eight hundred forty-two thousand, two hundred thirty-eight".