204706140 has 48 divisors (see below), whose sum is σ = 584000928. Its totient is φ = 53557504.

The previous prime is 204706127. The next prime is 204706147. The reversal of 204706140 is 41607402.

It is a self number, because there is not a number n which added to its sum of digits gives 204706140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204706147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29007 + ... + 35366.

It is an arithmetic number, because the mean of its divisors is an integer number (12166686).

Almost surely, 2^204706140 is an apocalyptic number.

204706140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204706140 is an abundant number, since it is smaller than the sum of its proper divisors (379294788).

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

204706140 is a wasteful number, since it uses less digits than its factorization.

204706140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64438 (or 64436 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 204706140 is about 14307.5553467390. Note that the first 3 decimals coincide. The cubic root of 204706140 is about 589.3549783152.

The spelling of 204706140 in words is "two hundred four million, seven hundred six thousand, one hundred forty".