204230440 has 32 divisors (see below), whose sum is σ = 467057160. Its totient is φ = 80352000.

The previous prime is 204230423. The next prime is 204230443. The reversal of 204230440 is 44032402.

It can be written as a sum of positive squares in 4 ways, for example, as 36942084 + 167288356 = 6078^2 + 12934^2 .

It is not an unprimeable number, because it can be changed into a prime (204230443) 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, 39411 + ... + 44290.

Almost surely, 2^204230440 is an apocalyptic number.

204230440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204230440 is an abundant number, since it is smaller than the sum of its proper divisors (262826720).

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

204230440 is a wasteful number, since it uses less digits than its factorization.

204230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83773 (or 83769 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 204230440 is about 14290.9215937951. The cubic root of 204230440 is about 588.8981061543.

Adding to 204230440 its reverse (44032402), we get a palindrome (248262842).

The spelling of 204230440 in words is "two hundred four million, two hundred thirty thousand, four hundred forty".