220168028 has 12 divisors (see below), whose sum is σ = 387231600. Its totient is φ = 109530432.

The previous prime is 220168027. The next prime is 220168049. The reversal of 220168028 is 820861022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220168021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137501 + ... + 139092.

It is an arithmetic number, because the mean of its divisors is an integer number (32269300).

Almost surely, 2^220168028 is an apocalyptic number.

It is an amenable number.

220168028 is a deficient number, since it is larger than the sum of its proper divisors (167063572).

220168028 is a wasteful number, since it uses less digits than its factorization.

220168028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276796 (or 276794 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 220168028 is about 14838.0601157968. The cubic root of 220168028 is about 603.8347244528.

The spelling of 220168028 in words is "two hundred twenty million, one hundred sixty-eight thousand, twenty-eight".