68080220 has 24 divisors (see below), whose sum is σ = 153966624. Its totient is φ = 25137216.

The previous prime is 68080217. The next prime is 68080237. The reversal of 68080220 is 2208086.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 68080220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130664 + ... + 131183.

It is an arithmetic number, because the mean of its divisors is an integer number (6415276).

Almost surely, 2^68080220 is an apocalyptic number.

It is an amenable number.

68080220 is an abundant number, since it is smaller than the sum of its proper divisors (85886404).

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

68080220 is a wasteful number, since it uses less digits than its factorization.

68080220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261869 (or 261867 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 68080220 is about 8251.0738695033. The cubic root of 68080220 is about 408.3259522013.

The spelling of 68080220 in words is "sixty-eight million, eighty thousand, two hundred twenty".