204709146 has 16 divisors (see below), whose sum is σ = 419404608. Its totient is φ = 66572000.

The previous prime is 204709129. The next prime is 204709157. The reversal of 204709146 is 641907402.

It is a happy number.

204709146 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415830 + ... + 416321.

It is an arithmetic number, because the mean of its divisors is an integer number (26212788).

Almost surely, 2^204709146 is an apocalyptic number.

204709146 is an abundant number, since it is smaller than the sum of its proper divisors (214695462).

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

204709146 is a wasteful number, since it uses less digits than its factorization.

204709146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832197.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 204709146 is about 14307.6603957460. The cubic root of 204709146 is about 589.3578630885.

The spelling of 204709146 in words is "two hundred four million, seven hundred nine thousand, one hundred forty-six".