204220424 has 32 divisors (see below), whose sum is σ = 390096000. Its totient is φ = 100208640.

The previous prime is 204220411. The next prime is 204220463. The reversal of 204220424 is 424022402.

204220424 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 = 204220396 and 204220405.

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, 145277 + ... + 146675.

It is an arithmetic number, because the mean of its divisors is an integer number (12190500).

Almost surely, 2^204220424 is an apocalyptic number.

It is an amenable number.

204220424 is a deficient number, since it is larger than the sum of its proper divisors (185875576).

204220424 is a wasteful number, since it uses less digits than its factorization.

204220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 204220424 is about 14290.5711572351. The cubic root of 204220424 is about 588.8884789576. Note that the first 3 decimals are identical.

Adding to 204220424 its reverse (424022402), we get a palindrome (628242826).

The spelling of 204220424 in words is "two hundred four million, two hundred twenty thousand, four hundred twenty-four".