220215432 has 32 divisors (see below), whose sum is σ = 574476480. Its totient is φ = 70213440.

The previous prime is 220215431. The next prime is 220215439. The reversal of 220215432 is 234512022.

It is a junction number, because it is equal to n+sod(n) for n = 220215399 and 220215408.

It is not an unprimeable number, because it can be changed into a prime (220215431) 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, 198919 + ... + 200022.

It is an arithmetic number, because the mean of its divisors is an integer number (17952390).

Almost surely, 2^220215432 is an apocalyptic number.

It is an amenable number.

220215432 is an abundant number, since it is smaller than the sum of its proper divisors (354261048).

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

220215432 is a wasteful number, since it uses less digits than its factorization.

220215432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398973 (or 398969 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 220215432 is about 14839.6574084444. The cubic root of 220215432 is about 603.8780582154.

Adding to 220215432 its reverse (234512022), we get a palindrome (454727454).

The spelling of 220215432 in words is "two hundred twenty million, two hundred fifteen thousand, four hundred thirty-two".