220188432 has 40 divisors (see below), whose sum is σ = 569373280. Its totient is φ = 73324800.

The previous prime is 220188427. The next prime is 220188439. The reversal of 220188432 is 234881022.

It is a self number, because there is not a number n which added to its sum of digits gives 220188432.

It is not an unprimeable number, because it can be changed into a prime (220188439) 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, 75807 + ... + 78657.

It is an arithmetic number, because the mean of its divisors is an integer number (14234332).

Almost surely, 2^220188432 is an apocalyptic number.

It is an amenable number.

220188432 is an abundant number, since it is smaller than the sum of its proper divisors (349184848).

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

220188432 is a wasteful number, since it uses less digits than its factorization.

220188432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 220188432 is about 14838.7476560524. The cubic root of 220188432 is about 603.8533772718.

The spelling of 220188432 in words is "two hundred twenty million, one hundred eighty-eight thousand, four hundred thirty-two".