68934220 has 48 divisors (see below), whose sum is σ = 151881408. Its totient is φ = 26231040.

The previous prime is 68934199. The next prime is 68934227. The reversal of 68934220 is 2243986.

It is not an unprimeable number, because it can be changed into a prime (68934227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127150 + ... + 127690.

It is an arithmetic number, because the mean of its divisors is an integer number (3164196).

Almost surely, 2^68934220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68934220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75940704).

68934220 is an abundant number, since it is smaller than the sum of its proper divisors (82947188).

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

68934220 is a wasteful number, since it uses less digits than its factorization.

68934220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 68934220 is about 8302.6634280814. The cubic root of 68934220 is about 410.0262128789.

The spelling of 68934220 in words is "sixty-eight million, nine hundred thirty-four thousand, two hundred twenty".