204894728 has 32 divisors (see below), whose sum is σ = 394437600. Its totient is φ = 99745152.

The previous prime is 204894709. The next prime is 204894731. The reversal of 204894728 is 827498402.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48476 + ... + 52532.

It is an arithmetic number, because the mean of its divisors is an integer number (12326175).

Almost surely, 2^204894728 is an apocalyptic number.

It is an amenable number.

204894728 is a deficient number, since it is larger than the sum of its proper divisors (189542872).

204894728 is a wasteful number, since it uses less digits than its factorization.

204894728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229 (or 4225 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 204894728 is about 14314.1443334906. The cubic root of 204894728 is about 589.5359062262.

The spelling of 204894728 in words is "two hundred four million, eight hundred ninety-four thousand, seven hundred twenty-eight".