220232028 has 24 divisors (see below), whose sum is σ = 518425488. Its totient is φ = 72760576.

The previous prime is 220232009. The next prime is 220232041. The reversal of 220232028 is 820232022.

It is a junction number, because it is equal to n+sod(n) for n = 220231995 and 220232013.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79851 + ... + 82562.

It is an arithmetic number, because the mean of its divisors is an integer number (21601062).

Almost surely, 2^220232028 is an apocalyptic number.

It is an amenable number.

220232028 is an abundant number, since it is smaller than the sum of its proper divisors (298193460).

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

220232028 is a wasteful number, since it uses less digits than its factorization.

220232028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162533 (or 162531 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 220232028 is about 14840.2165752391. The cubic root of 220232028 is about 603.8932277677.

The spelling of 220232028 in words is "two hundred twenty million, two hundred thirty-two thousand, twenty-eight".