20303204 has 12 divisors (see below), whose sum is σ = 37075584. Its totient is φ = 9710184.

The previous prime is 20303203. The next prime is 20303249. The reversal of 20303204 is 40230302.

It is not an unprimeable number, because it can be changed into a prime (20303203) 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 3 ways as a sum of consecutive naturals, for example, 110252 + ... + 110435.

It is an arithmetic number, because the mean of its divisors is an integer number (3089632).

Almost surely, 2^20303204 is an apocalyptic number.

It is an amenable number.

20303204 is a deficient number, since it is larger than the sum of its proper divisors (16772380).

20303204 is a wasteful number, since it uses less digits than its factorization.

20303204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220714 (or 220712 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20303204 is about 4505.9076777049. The cubic root of 20303204 is about 272.8065914880.

Adding to 20303204 its reverse (40230302), we get a palindrome (60533506).

The spelling of 20303204 in words is "twenty million, three hundred three thousand, two hundred four".