204650140 has 24 divisors (see below), whose sum is σ = 452385360. Its totient is φ = 77551488.

The previous prime is 204650123. The next prime is 204650143. The reversal of 204650140 is 41056402.

204650140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204650143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268897 + ... + 269656.

It is an arithmetic number, because the mean of its divisors is an integer number (18849390).

Almost surely, 2^204650140 is an apocalyptic number.

204650140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204650140 is an abundant number, since it is smaller than the sum of its proper divisors (247735220).

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

204650140 is a wasteful number, since it uses less digits than its factorization.

204650140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538581 (or 538579 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 204650140 is about 14305.5982048987. The cubic root of 204650140 is about 589.3012315333.

The spelling of 204650140 in words is "two hundred four million, six hundred fifty thousand, one hundred forty".