219441 has 8 divisors (see below), whose sum is σ = 294880. Its totient is φ = 145152.

The previous prime is 219437. The next prime is 219451. The reversal of 219441 is 144912.

219441 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 not a de Polignac number, because 219441 - 2² = 219437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219451) 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, 390 + ... + 768.

It is an arithmetic number, because the mean of its divisors is an integer number (36860).

2²¹⁹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

219441 is a deficient number, since it is larger than the sum of its proper divisors (75439).

219441 is a wasteful number, since it uses less digits than its factorization.

219441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575.

The product of its digits is 288, while the sum is 21.

The square root of 219441 is about 468.4453009691. The cubic root of 219441 is about 60.3169340436.

Subtracting from 219441 its reverse (144912), we obtain a square (74529 = 273²).

It can be divided in two parts, 21944 and 1, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 219441 in words is "two hundred nineteen thousand, four hundred forty-one".