220435156 has 6 divisors (see below), whose sum is σ = 385761530. Its totient is φ = 110217576.

The previous prime is 220435153. The next prime is 220435181. The reversal of 220435156 is 651534022.

It can be written as a sum of positive squares in only one way, i.e., 204032656 + 16402500 = 14284^2 + 4050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220435153) by changing a digit.

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 as a sum of consecutive naturals, namely, 27554391 + ... + 27554398.

Almost surely, 2^220435156 is an apocalyptic number.

It is an amenable number.

220435156 is a deficient number, since it is larger than the sum of its proper divisors (165326374).

220435156 is a wasteful number, since it uses less digits than its factorization.

220435156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55108793 (or 55108791 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 220435156 is about 14847.0588333178. The cubic root of 220435156 is about 604.0788349360.

Adding to 220435156 its reverse (651534022), we get a palindrome (871969178).

The spelling of 220435156 in words is "two hundred twenty million, four hundred thirty-five thousand, one hundred fifty-six".