204313140 has 144 divisors (see below), whose sum is σ = 684972288. Its totient is φ = 49032192.

The previous prime is 204313129. The next prime is 204313141. The reversal of 204313140 is 41313402.

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 (204313141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68929 + ... + 71831.

It is an arithmetic number, because the mean of its divisors is an integer number (4756752).

Almost surely, 2^204313140 is an apocalyptic number.

204313140 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 204313140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342486144).

204313140 is an abundant number, since it is smaller than the sum of its proper divisors (480659148).

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

204313140 is a wasteful number, since it uses less digits than its factorization.

204313140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 204313140 is about 14293.8147462460. The cubic root of 204313140 is about 588.9775838612.

Adding to 204313140 its reverse (41313402), we get a palindrome (245626542).

The spelling of 204313140 in words is "two hundred four million, three hundred thirteen thousand, one hundred forty".