220032312 has 32 divisors (see below), whose sum is σ = 579033600. Its totient is φ = 69483744.

The previous prime is 220032311. The next prime is 220032347. The reversal of 220032312 is 213230022.

It is a junction number, because it is equal to n+sod(n) for n = 220032291 and 220032300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220032311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240808 + ... + 241719.

It is an arithmetic number, because the mean of its divisors is an integer number (18094800).

Almost surely, 2^220032312 is an apocalyptic number.

It is an amenable number.

220032312 is an abundant number, since it is smaller than the sum of its proper divisors (359001288).

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

220032312 is a wasteful number, since it uses less digits than its factorization.

220032312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482555 (or 482551 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 220032312 is about 14833.4861714972. The cubic root of 220032312 is about 603.7106269949.

Adding to 220032312 its reverse (213230022), we get a palindrome (433262334).

The spelling of 220032312 in words is "two hundred twenty million, thirty-two thousand, three hundred twelve".