220044421 has 8 divisors (see below), whose sum is σ = 221810400. Its totient is φ = 218286000.

The previous prime is 220044389. The next prime is 220044437. The reversal of 220044421 is 124440022.

220044421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220044421 - 2⁵ = 220044389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220044221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65890 + ... + 69148.

It is an arithmetic number, because the mean of its divisors is an integer number (27726300).

Almost surely, 2^220044421 is an apocalyptic number.

It is an amenable number.

220044421 is a deficient number, since it is larger than the sum of its proper divisors (1765979).

220044421 is a wasteful number, since it uses less digits than its factorization.

220044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 220044421 is about 14833.8943302155. The cubic root of 220044421 is about 603.7217014257.

Adding to 220044421 its reverse (124440022), we get a palindrome (344484443).

The spelling of 220044421 in words is "two hundred twenty million, forty-four thousand, four hundred twenty-one".