204302340 has 72 divisors (see below), whose sum is σ = 676061568. Its totient is φ = 49527360.

The previous prime is 204302321. The next prime is 204302341. The reversal of 204302340 is 43203402.

204302340 is a `hidden beast` number, since 2 + 0 + 430 + 234 + 0 = 666.

It is a super-2 number, since 2×204302340² = 83478892258951200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (204302341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49612 + ... + 53571.

It is an arithmetic number, because the mean of its divisors is an integer number (9389744).

Almost surely, 2^204302340 is an apocalyptic number.

204302340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204302340 is an abundant number, since it is smaller than the sum of its proper divisors (471759228).

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

204302340 is a wasteful number, since it uses less digits than its factorization.

204302340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103209 (or 103204 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 204302340 is about 14293.4369554702. The cubic root of 204302340 is about 588.9672058862.

Adding to 204302340 its reverse (43203402), we get a palindrome (247505742).

The spelling of 204302340 in words is "two hundred four million, three hundred two thousand, three hundred forty".