220432044 has 24 divisors (see below), whose sum is σ = 587819008. Its totient is φ = 62980560.

The previous prime is 220432039. The next prime is 220432087. The reversal of 220432044 is 440234022.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 220432044.

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, 1312012 + ... + 1312179.

Almost surely, 2^220432044 is an apocalyptic number.

It is an amenable number.

220432044 is an abundant number, since it is smaller than the sum of its proper divisors (367386964).

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

220432044 is a wasteful number, since it uses less digits than its factorization.

220432044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624205 (or 2624203 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 220432044 is about 14846.9540310462. The cubic root of 220432044 is about 604.0759922222.

Adding to 220432044 its reverse (440234022), we get a palindrome (660666066).

The spelling of 220432044 in words is "two hundred twenty million, four hundred thirty-two thousand, forty-four".