220200445 has 4 divisors (see below), whose sum is σ = 264240540. Its totient is φ = 176160352.

The previous prime is 220200419. The next prime is 220200457. The reversal of 220200445 is 544002022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49871844 + 170328601 = 7062^2 + 13051^2 .

It is a cyclic number.

It is not a de Polignac number, because 220200445 - 2⁷ = 220200317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22020040 + ... + 22020049.

It is an arithmetic number, because the mean of its divisors is an integer number (66060135).

Almost surely, 2^220200445 is an apocalyptic number.

It is an amenable number.

220200445 is a deficient number, since it is larger than the sum of its proper divisors (44040095).

220200445 is an equidigital number, since it uses as much as digits as its factorization.

220200445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44040094.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 220200445 is about 14839.1524353650. The cubic root of 220200445 is about 603.8643587126.

Adding to 220200445 its reverse (544002022), we get a palindrome (764202467).

The spelling of 220200445 in words is "two hundred twenty million, two hundred thousand, four hundred forty-five".