204598816 has 24 divisors (see below), whose sum is σ = 412174224. Its totient is φ = 99919680.

The previous prime is 204598811. The next prime is 204598837. The reversal of 204598816 is 618895402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (204598811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72970 + ... + 75721.

It is an arithmetic number, because the mean of its divisors is an integer number (17173926).

Almost surely, 2^204598816 is an apocalyptic number.

It is an amenable number.

204598816 is an abundant number, since it is smaller than the sum of its proper divisors (207575408).

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

204598816 is a wasteful number, since it uses less digits than its factorization.

204598816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148744 (or 148736 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 204598816 is about 14303.8042492199. The cubic root of 204598816 is about 589.2519639961.

The spelling of 204598816 in words is "two hundred four million, five hundred ninety-eight thousand, eight hundred sixteen".