204343140 has 48 divisors (see below), whose sum is σ = 573370560. Its totient is φ = 54376320.

The previous prime is 204343123. The next prime is 204343141. The reversal of 204343140 is 41343402.

It is a super-2 number, since 2×204343140² = 83512237730119200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204343141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27195 + ... + 33885.

It is an arithmetic number, because the mean of its divisors is an integer number (11945220).

Almost surely, 2^204343140 is an apocalyptic number.

204343140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204343140 is an abundant number, since it is smaller than the sum of its proper divisors (369027420).

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

204343140 is a wasteful number, since it uses less digits than its factorization.

204343140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212 (or 7210 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204343140 is about 14294.8641126805. The cubic root of 204343140 is about 589.0064096508.

Adding to 204343140 its reverse (41343402), we get a palindrome (245686542).

The spelling of 204343140 in words is "two hundred four million, three hundred forty-three thousand, one hundred forty".