204564102 has 16 divisors (see below), whose sum is σ = 422326272. Its totient is φ = 65988360.

The previous prime is 204564067. The next prime is 204564109. The reversal of 204564102 is 201465402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204564109) 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, 549718 + ... + 550089.

It is an arithmetic number, because the mean of its divisors is an integer number (26395392).

Almost surely, 2^204564102 is an apocalyptic number.

204564102 is an abundant number, since it is smaller than the sum of its proper divisors (217762170).

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

204564102 is a wasteful number, since it uses less digits than its factorization.

204564102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099843.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 204564102 is about 14302.5907443372. The cubic root of 204564102 is about 589.2186362541.

The spelling of 204564102 in words is "two hundred four million, five hundred sixty-four thousand, one hundred two".