220445452 has 6 divisors (see below), whose sum is σ = 385779548. Its totient is φ = 110222724.

The previous prime is 220445447. The next prime is 220445453. The reversal of 220445452 is 254544022.

220445452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220445452.

It is not an unprimeable number, because it can be changed into a prime (220445453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27555678 + ... + 27555685.

Almost surely, 2^220445452 is an apocalyptic number.

It is an amenable number.

220445452 is a deficient number, since it is larger than the sum of its proper divisors (165334096).

220445452 is a wasteful number, since it uses less digits than its factorization.

220445452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55111367 (or 55111365 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 220445452 is about 14847.4055646096. The cubic root of 220445452 is about 604.0882398164.

Adding to 220445452 its reverse (254544022), we get a palindrome (474989474).

The spelling of 220445452 in words is "two hundred twenty million, four hundred forty-five thousand, four hundred fifty-two".