204006340 has 12 divisors (see below), whose sum is σ = 428413356. Its totient is φ = 81602528.

The previous prime is 204006331. The next prime is 204006347. The reversal of 204006340 is 43600402.

It can be written as a sum of positive squares in 2 ways, for example, as 63489024 + 140517316 = 7968^2 + 11854^2 .

It is not an unprimeable number, because it can be changed into a prime (204006347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100139 + ... + 5100178.

It is an arithmetic number, because the mean of its divisors is an integer number (35701113).

Almost surely, 2^204006340 is an apocalyptic number.

204006340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204006340 is an abundant number, since it is smaller than the sum of its proper divisors (224407016).

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

204006340 is a wasteful number, since it uses less digits than its factorization.

204006340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200326 (or 10200324 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 204006340 is about 14283.0787997546. The cubic root of 204006340 is about 588.6826300062.

Adding to 204006340 its reverse (43600402), we get a palindrome (247606742).

The spelling of 204006340 in words is "two hundred four million, six thousand, three hundred forty".