220445156 has 24 divisors (see below), whose sum is σ = 403710720. Its totient is φ = 105126912.

The previous prime is 220445143. The next prime is 220445161. The reversal of 220445156 is 651544022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30500 + ... + 37028.

It is an arithmetic number, because the mean of its divisors is an integer number (16821280).

Almost surely, 2^220445156 is an apocalyptic number.

It is an amenable number.

220445156 is a deficient number, since it is larger than the sum of its proper divisors (183265564).

220445156 is a wasteful number, since it uses less digits than its factorization.

220445156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923 (or 6921 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 220445156 is about 14847.3955965348. The cubic root of 220445156 is about 604.0879694393.

Adding to 220445156 its reverse (651544022), we get a palindrome (871989178).

The spelling of 220445156 in words is "two hundred twenty million, four hundred forty-five thousand, one hundred fifty-six".