20450204 has 24 divisors (see below), whose sum is σ = 37406208. Its totient is φ = 9771120.

The previous prime is 20450149. The next prime is 20450207. The reversal of 20450204 is 40205402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9299 + ... + 11285.

It is an arithmetic number, because the mean of its divisors is an integer number (1558592).

Almost surely, 2^20450204 is an apocalyptic number.

It is an amenable number.

20450204 is a deficient number, since it is larger than the sum of its proper divisors (16956004).

20450204 is a wasteful number, since it uses less digits than its factorization.

20450204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20450204 is about 4522.1901773366. The cubic root of 20450204 is about 273.4634036238.

Adding to 20450204 its reverse (40205402), we get a palindrome (60655606).

The spelling of 20450204 in words is "twenty million, four hundred fifty thousand, two hundred four".