68812230 has 64 divisors (see below), whose sum is σ = 173352960. Its totient is φ = 17460864.

The previous prime is 68812217. The next prime is 68812259. The reversal of 68812230 is 3221886.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51511 + ... + 52829.

It is an arithmetic number, because the mean of its divisors is an integer number (2708640).

Almost surely, 2^68812230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68812230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86676480).

68812230 is an abundant number, since it is smaller than the sum of its proper divisors (104540730).

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

68812230 is a wasteful number, since it uses less digits than its factorization.

68812230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 68812230 is about 8295.3137372856. The cubic root of 68812230 is about 409.7842013288.

The spelling of 68812230 in words is "sixty-eight million, eight hundred twelve thousand, two hundred thirty".