819230 has 32 divisors (see below), whose sum is σ = 1607040. Its totient is φ = 299520.

The previous prime is 819229. The next prime is 819239. The reversal of 819230 is 32918.

It is a super-2 number, since 2×819230² = 1342275585800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 819196 and 819205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10331 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2⁸¹⁹²³⁰ is an apocalyptic number.

819230 is a deficient number, since it is larger than the sum of its proper divisors (787810).

819230 is a wasteful number, since it uses less digits than its factorization.

819230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 819230 is about 905.1132525822. The cubic root of 819230 is about 93.5697098033.

The spelling of 819230 in words is "eight hundred nineteen thousand, two hundred thirty".