20443230 has 24 divisors (see below), whose sum is σ = 53152632. Its totient is φ = 5451504.

The previous prime is 20443201. The next prime is 20443249. The reversal of 20443230 is 3234402.

20443230 is a `hidden beast` number, since 204 + 432 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113484 + ... + 113663.

It is an arithmetic number, because the mean of its divisors is an integer number (2214693).

Almost surely, 2^20443230 is an apocalyptic number.

20443230 is an abundant number, since it is smaller than the sum of its proper divisors (32709402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20443230 is a wasteful number, since it uses less digits than its factorization.

20443230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227160 (or 227157 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20443230 is about 4521.4190250407. The cubic root of 20443230 is about 273.4323142744.

Adding to 20443230 its reverse (3234402), we get a palindrome (23677632).

It can be divided in two parts, 204 and 43230, that added together give a palindrome (43434).

The spelling of 20443230 in words is "twenty million, four hundred forty-three thousand, two hundred thirty".