219830489 has 4 divisors (see below), whose sum is σ = 220046820. Its totient is φ = 219614160.

The previous prime is 219830477. The next prime is 219830509. The reversal of 219830489 is 984038912.

It is a happy number.

219830489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 91393600 + 128436889 = 9560^2 + 11333^2 .

It is a cyclic number.

It is not a de Polignac number, because 219830489 - 2¹² = 219826393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219830449) 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, 106634 + ... + 108675.

It is an arithmetic number, because the mean of its divisors is an integer number (55011705).

Almost surely, 2^219830489 is an apocalyptic number.

It is an amenable number.

219830489 is a deficient number, since it is larger than the sum of its proper divisors (216331).

219830489 is a wasteful number, since it uses less digits than its factorization.

219830489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216330.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 219830489 is about 14826.6816584157. The cubic root of 219830489 is about 603.5259875043.

The spelling of 219830489 in words is "two hundred nineteen million, eight hundred thirty thousand, four hundred eighty-nine".