20003230 has 16 divisors (see below), whose sum is σ = 38775744. Its totient is φ = 7385760.

The previous prime is 20003227. The next prime is 20003231. The reversal of 20003230 is 3230002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76806 + ... + 77065.

It is an arithmetic number, because the mean of its divisors is an integer number (2423484).

Almost surely, 2^20003230 is an apocalyptic number.

20003230 is a deficient number, since it is larger than the sum of its proper divisors (18772514).

20003230 is a wasteful number, since it uses less digits than its factorization.

20003230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153891.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 20003230 is about 4472.4970653987. The cubic root of 20003230 is about 271.4563734878.

Adding to 20003230 its reverse (3230002), we get a palindrome (23233232).

The spelling of 20003230 in words is "twenty million, three thousand, two hundred thirty".