204246100 has 72 divisors (see below), whose sum is σ = 457705080. Its totient is φ = 79073280.

The previous prime is 204246089. The next prime is 204246103. The reversal of 204246100 is 1642402.

It can be written as a sum of positive squares in 12 ways, for example, as 106750224 + 97495876 = 10332^2 + 9874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204246103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471484 + ... + 471916.

It is an arithmetic number, because the mean of its divisors is an integer number (6357015).

Almost surely, 2^204246100 is an apocalyptic number.

204246100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204246100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228852540).

204246100 is an abundant number, since it is smaller than the sum of its proper divisors (253458980).

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

204246100 is a wasteful number, since it uses less digits than its factorization.

204246100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204246100 is about 14291.4694835766. The cubic root of 204246100 is about 588.9131576302.

Adding to 204246100 its reverse (1642402), we get a palindrome (205888502).

The spelling of 204246100 in words is "two hundred four million, two hundred forty-six thousand, one hundred".