220321028 has 12 divisors (see below), whose sum is σ = 385817040. Its totient is φ = 110087592.

The previous prime is 220321027. The next prime is 220321039. The reversal of 220321028 is 820123022.

It is not an unprimeable number, because it can be changed into a prime (220321021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11126 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (32151420).

Almost surely, 2^220321028 is an apocalyptic number.

It is an amenable number.

220321028 is a deficient number, since it is larger than the sum of its proper divisors (165496012).

220321028 is a wasteful number, since it uses less digits than its factorization.

220321028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36466 (or 36464 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 220321028 is about 14843.2148808808. The cubic root of 220321028 is about 603.9745651029.

The spelling of 220321028 in words is "two hundred twenty million, three hundred twenty-one thousand, twenty-eight".