204102340 has 96 divisors (see below), whose sum is σ = 497405664. Its totient is φ = 69672960.

The previous prime is 204102337. The next prime is 204102343. The reversal of 204102340 is 43201402.

204102340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204102337) and next prime (204102343).

It can be written as a sum of positive squares in 16 ways, for example, as 95609284 + 108493056 = 9778^2 + 10416^2 .

It is not an unprimeable number, because it can be changed into a prime (204102343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269242 + ... + 269998.

It is an arithmetic number, because the mean of its divisors is an integer number (5181309).

Almost surely, 2^204102340 is an apocalyptic number.

204102340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204102340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248702832).

204102340 is an abundant number, since it is smaller than the sum of its proper divisors (293303324).

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

204102340 is a wasteful number, since it uses less digits than its factorization.

204102340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204102340 is about 14286.4390244735. The cubic root of 204102340 is about 588.7749550294.

Adding to 204102340 its reverse (43201402), we get a palindrome (247303742).

The spelling of 204102340 in words is "two hundred four million, one hundred two thousand, three hundred forty".