204520234 has 8 divisors (see below), whose sum is σ = 324826308. Its totient is φ = 96244800.

The previous prime is 204520229. The next prime is 204520241. The reversal of 204520234 is 432025402.

It can be written as a sum of positive squares in 2 ways, for example, as 182925625 + 21594609 = 13525^2 + 4647^2 .

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

It is a super-2 number, since 2×204520234² = 83657052230829512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3007617 + ... + 3007684.

Almost surely, 2^204520234 is an apocalyptic number.

204520234 is a deficient number, since it is larger than the sum of its proper divisors (120306074).

204520234 is a wasteful number, since it uses less digits than its factorization.

204520234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015320.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 204520234 is about 14301.0570937955. The cubic root of 204520234 is about 589.1765146718.

Adding to 204520234 its reverse (432025402), we get a palindrome (636545636).

It can be divided in two parts, 20 and 4520234, that added together give a palindrome (4520254).

The spelling of 204520234 in words is "two hundred four million, five hundred twenty thousand, two hundred thirty-four".