204243264 has 84 divisors (see below), whose sum is σ = 589869280. Its totient is φ = 67564800.

The previous prime is 204243257. The next prime is 204243301. The reversal of 204243264 is 462342402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78789 + ... + 81339.

Almost surely, 2^204243264 is an apocalyptic number.

204243264 is a gapful number since it is divisible by the number (24) 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 204243264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294934640).

204243264 is an abundant number, since it is smaller than the sum of its proper divisors (385626016).

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

204243264 is a wasteful number, since it uses less digits than its factorization.

204243264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 204243264 is about 14291.3702632043. The cubic root of 204243264 is about 588.9104318899.

Adding to 204243264 its reverse (462342402), we get a palindrome (666585666).

The spelling of 204243264 in words is "two hundred four million, two hundred forty-three thousand, two hundred sixty-four".