68758220 has 12 divisors (see below), whose sum is σ = 144392304. Its totient is φ = 27503280.

The previous prime is 68758219. The next prime is 68758223. The reversal of 68758220 is 2285786.

It is not an unprimeable number, because it can be changed into a prime (68758223) by changing a digit.

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, 1718936 + ... + 1718975.

It is an arithmetic number, because the mean of its divisors is an integer number (12032692).

Almost surely, 2^68758220 is an apocalyptic number.

It is an amenable number.

68758220 is an abundant number, since it is smaller than the sum of its proper divisors (75634084).

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

68758220 is a wasteful number, since it uses less digits than its factorization.

68758220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437920 (or 3437918 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 68758220 is about 8292.0576457234. The cubic root of 68758220 is about 409.6769614881.

The spelling of 68758220 in words is "sixty-eight million, seven hundred fifty-eight thousand, two hundred twenty".