204340156 has 6 divisors (see below), whose sum is σ = 357595280. Its totient is φ = 102170076.

The previous prime is 204340139. The next prime is 204340247. The reversal of 204340156 is 651043402.

It is a self number, because there is not a number n which added to its sum of digits gives 204340156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25542516 + ... + 25542523.

Almost surely, 2^204340156 is an apocalyptic number.

It is an amenable number.

204340156 is a deficient number, since it is larger than the sum of its proper divisors (153255124).

204340156 is a wasteful number, since it uses less digits than its factorization.

204340156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51085043 (or 51085041 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 204340156 is about 14294.7597391492. The cubic root of 204340156 is about 589.0035425720.

Adding to 204340156 its reverse (651043402), we get a palindrome (855383558).

The spelling of 204340156 in words is "two hundred four million, three hundred forty thousand, one hundred fifty-six".