204402150 has 192 divisors, whose sum is σ = 610675200. Its totient is φ = 50117760.

The previous prime is 204402139. The next prime is 204402157. The reversal of 204402150 is 51204402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204402157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 900337 + ... + 900563.

It is an arithmetic number, because the mean of its divisors is an integer number (3180600).

Almost surely, 2^204402150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204402150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305337600).

204402150 is an abundant number, since it is smaller than the sum of its proper divisors (406273050).

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

204402150 is a wasteful number, since it uses less digits than its factorization.

204402150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 204402150 is about 14296.9279917051. The cubic root of 204402150 is about 589.0631017473.

Adding to 204402150 its reverse (51204402), we get a palindrome (255606552).

The spelling of 204402150 in words is "two hundred four million, four hundred two thousand, one hundred fifty".