204161652 has 36 divisors (see below), whose sum is σ = 516595716. Its totient is φ = 67985280.

The previous prime is 204161651. The next prime is 204161681. The reversal of 204161652 is 256161402.

204161652 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 6 + 1 + 652 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 106626276 + 97535376 = 10326^2 + 9876^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204161651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43752 + ... + 48192.

It is an arithmetic number, because the mean of its divisors is an integer number (14349881).

Almost surely, 2^204161652 is an apocalyptic number.

It is an amenable number.

204161652 is an abundant number, since it is smaller than the sum of its proper divisors (312434064).

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

204161652 is a wasteful number, since it uses less digits than its factorization.

204161652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728 (or 5723 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 204161652 is about 14288.5146883782. The cubic root of 204161652 is about 588.8319820384.

The spelling of 204161652 in words is "two hundred four million, one hundred sixty-one thousand, six hundred fifty-two".