68243118 has 32 divisors (see below), whose sum is σ = 141181056. Its totient is φ = 21978528.

The previous prime is 68243113. The next prime is 68243143. The reversal of 68243118 is 81134286.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68243113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19705 + ... + 22907.

It is an arithmetic number, because the mean of its divisors is an integer number (4411908).

Almost surely, 2^68243118 is an apocalyptic number.

68243118 is an abundant number, since it is smaller than the sum of its proper divisors (72937938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68243118 is a wasteful number, since it uses less digits than its factorization.

68243118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328.

The product of its digits is 9216, while the sum is 33.

The square root of 68243118 is about 8260.9392928407. The cubic root of 68243118 is about 408.6513648788.

The spelling of 68243118 in words is "sixty-eight million, two hundred forty-three thousand, one hundred eighteen".