204340242 has 16 divisors (see below), whose sum is σ = 408821760. Its totient is φ = 68089872.

The previous prime is 204340139. The next prime is 204340247. The reversal of 204340242 is 242043402.

204340242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (204340247) 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, 27388 + ... + 34040.

It is an arithmetic number, because the mean of its divisors is an integer number (25551360).

Almost surely, 2^204340242 is an apocalyptic number.

204340242 is an abundant number, since it is smaller than the sum of its proper divisors (204481518).

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

204340242 is a wasteful number, since it uses less digits than its factorization.

204340242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11777.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 204340242 is about 14294.7627472442. The cubic root of 204340242 is about 589.0036252026.

Adding to 204340242 its reverse (242043402), we get a palindrome (446383644).

The spelling of 204340242 in words is "two hundred four million, three hundred forty thousand, two hundred forty-two".