219430 has 8 divisors (see below), whose sum is σ = 394992. Its totient is φ = 87768.

The previous prime is 219409. The next prime is 219433. The reversal of 219430 is 34912.

219430 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 an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 219398 and 219407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219433) 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, 10962 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (49374).

2²¹⁹⁴³⁰ is an apocalyptic number.

219430 is a deficient number, since it is larger than the sum of its proper divisors (175562).

219430 is a wasteful number, since it uses less digits than its factorization.

219430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21950.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 219430 is about 468.4335598567. The cubic root of 219430 is about 60.3159261837.

The spelling of 219430 in words is "two hundred nineteen thousand, four hundred thirty".