219430223 has 4 divisors (see below), whose sum is σ = 220544280. Its totient is φ = 218316168.

The previous prime is 219430217. The next prime is 219430241. The reversal of 219430223 is 322034912.

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 219430223 - 2⁸ = 219429967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 219430192 and 219430201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219430213) 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, 556733 + ... + 557126.

It is an arithmetic number, because the mean of its divisors is an integer number (55136070).

Almost surely, 2^219430223 is an apocalyptic number.

219430223 is a deficient number, since it is larger than the sum of its proper divisors (1114057).

219430223 is a wasteful number, since it uses less digits than its factorization.

219430223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114056.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 219430223 is about 14813.1773431631. The cubic root of 219430223 is about 603.1594661610.

The spelling of 219430223 in words is "two hundred nineteen million, four hundred thirty thousand, two hundred twenty-three".