204492770 has 32 divisors (see below), whose sum is σ = 392283648. Its totient is φ = 76571968.

The previous prime is 204492713. The next prime is 204492773. The reversal of 204492770 is 77294402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 204492770.

It is not an unprimeable number, because it can be changed into a prime (204492773) 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, 1352 + ... + 20268.

It is an arithmetic number, because the mean of its divisors is an integer number (12258864).

Almost surely, 2^204492770 is an apocalyptic number.

204492770 is a deficient number, since it is larger than the sum of its proper divisors (187790878).

204492770 is a wasteful number, since it uses less digits than its factorization.

204492770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18994.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 204492770 is about 14300.0968528189. The cubic root of 204492770 is about 589.1501409681.

The spelling of 204492770 in words is "two hundred four million, four hundred ninety-two thousand, seven hundred seventy".