68046220 has 96 divisors (see below), whose sum is σ = 167086080. Its totient is φ = 23016960.

The previous prime is 68046211. The next prime is 68046241. The reversal of 68046220 is 2264086.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 305029 + ... + 305251.

It is an arithmetic number, because the mean of its divisors is an integer number (1740480).

Almost surely, 2^68046220 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 68046220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83543040).

68046220 is an abundant number, since it is smaller than the sum of its proper divisors (99039860).

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

68046220 is a wasteful number, since it uses less digits than its factorization.

68046220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 68046220 is about 8249.0132743256. The cubic root of 68046220 is about 408.2579667466.

The spelling of 68046220 in words is "sixty-eight million, forty-six thousand, two hundred twenty".