220441007 has 4 divisors (see below), whose sum is σ = 224054856. Its totient is φ = 216827160.

The previous prime is 220441003. The next prime is 220441009. The reversal of 220441007 is 700144022.

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

It is a cyclic number.

It is not a de Polignac number, because 220441007 - 2² = 220441003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220441007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220441003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806833 + ... + 1806954.

It is an arithmetic number, because the mean of its divisors is an integer number (56013714).

Almost surely, 2^220441007 is an apocalyptic number.

220441007 is a deficient number, since it is larger than the sum of its proper divisors (3613849).

220441007 is an equidigital number, since it uses as much as digits as its factorization.

220441007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613848.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 220441007 is about 14847.2558744032. The cubic root of 220441007 is about 604.0841795674.

Adding to 220441007 its reverse (700144022), we get a palindrome (920585029).

The spelling of 220441007 in words is "two hundred twenty million, four hundred forty-one thousand, seven".