204340430 has 16 divisors (see below), whose sum is σ = 420357600. Its totient is φ = 70059552.

The previous prime is 204340403. The next prime is 204340453. The reversal of 204340430 is 34043402.

It is a happy number.

It is a super-2 number, since 2×204340430² = 83510022665169800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1459505 + ... + 1459644.

It is an arithmetic number, because the mean of its divisors is an integer number (26272350).

Almost surely, 2^204340430 is an apocalyptic number.

204340430 is an abundant number, since it is smaller than the sum of its proper divisors (216017170).

204340430 is a wasteful number, since it uses less digits than its factorization.

204340430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919163.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 204340430 is about 14294.7693230776. The cubic root of 204340430 is about 589.0038058371.

Adding to 204340430 its reverse (34043402), we get a palindrome (238383832).

The spelling of 204340430 in words is "two hundred four million, three hundred forty thousand, four hundred thirty".