204233045420 has 48 divisors (see below), whose sum is σ = 431903556000. Its totient is φ = 81119439360.

The previous prime is 204233045399. The next prime is 204233045437. The reversal of 204233045420 is 24540332402.

It is a happy number.

It is a super-2 number, since 2×204233045420² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11556551 + ... + 11574209.

It is an arithmetic number, because the mean of its divisors is an integer number (8997990750).

Almost surely, 2^204233045420 is an apocalyptic number.

204233045420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204233045420 is an abundant number, since it is smaller than the sum of its proper divisors (227670510580).

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

204233045420 is a wasteful number, since it uses less digits than its factorization.

204233045420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21698 (or 21696 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 204233045420 its reverse (24540332402), we get a palindrome (228773377822).

The spelling of 204233045420 in words is "two hundred four billion, two hundred thirty-three million, forty-five thousand, four hundred twenty".