204202400202 has 24 divisors (see below), whose sum is σ = 444370588740. Its totient is φ = 67770227520.

The previous prime is 204202400197. The next prime is 204202400209. The reversal of 204202400202 is 202004202402.

204202400202 is a `hidden beast` number, since 2 + 0 + 420 + 2 + 40 + 0 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 204169326201 + 33074001 = 451851^2 + 5751^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (204202400209) 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, 24765699 + ... + 24773942.

Almost surely, 2^204202400202 is an apocalyptic number.

204202400202 is an abundant number, since it is smaller than the sum of its proper divisors (240168188538).

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

204202400202 is a wasteful number, since it uses less digits than its factorization.

204202400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49539878 (or 49539875 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 204202400202 its reverse (202004202402), we get a palindrome (406206602604).

The spelling of 204202400202 in words is "two hundred four billion, two hundred two million, four hundred thousand, two hundred two".