204200420 has 24 divisors (see below), whose sum is σ = 429758784. Its totient is φ = 81501536.

The previous prime is 204200393. The next prime is 204200461. The reversal of 204200420 is 24002402.

It is a happy number.

204200420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204200395 and 204200404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592 + ... + 20271.

It is an arithmetic number, because the mean of its divisors is an integer number (17906616).

Almost surely, 2^204200420 is an apocalyptic number.

204200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204200420 is an abundant number, since it is smaller than the sum of its proper divisors (225558364).

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

204200420 is a wasteful number, since it uses less digits than its factorization.

204200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22339 (or 22337 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 204200420 is about 14289.8712380483. The cubic root of 204200420 is about 588.8692505351.

Adding to 204200420 its reverse (24002402), we get a palindrome (228202822).

The spelling of 204200420 in words is "two hundred four million, two hundred thousand, four hundred twenty".