20204223 has 8 divisors (see below), whose sum is σ = 29011248. Its totient is φ = 12433344.

The previous prime is 20204221. The next prime is 20204231. The reversal of 20204223 is 32240202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20204223 - 2¹ = 20204221 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258990 + ... + 259067.

It is an arithmetic number, because the mean of its divisors is an integer number (3626406).

Almost surely, 2^20204223 is an apocalyptic number.

20204223 is a deficient number, since it is larger than the sum of its proper divisors (8807025).

20204223 is a wasteful number, since it uses less digits than its factorization.

20204223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518073.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20204223 is about 4494.9107888811. The cubic root of 20204223 is about 272.3625454960.

Adding to 20204223 its reverse (32240202), we get a palindrome (52444425).

The spelling of 20204223 in words is "twenty million, two hundred four thousand, two hundred twenty-three".