204256164 has 96 divisors (see below), whose sum is σ = 567705600. Its totient is φ = 55923840.

The previous prime is 204256163. The next prime is 204256183. The reversal of 204256164 is 461652402.

It is not an unprimeable number, because it can be changed into a prime (204256163) 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 31 ways as a sum of consecutive naturals, for example, 465057 + ... + 465495.

It is an arithmetic number, because the mean of its divisors is an integer number (5913600).

Almost surely, 2^204256164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204256164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283852800).

204256164 is an abundant number, since it is smaller than the sum of its proper divisors (363449436).

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

204256164 is a wasteful number, since it uses less digits than its factorization.

204256164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 204256164 is about 14291.8215773917. The cubic root of 204256164 is about 588.9228301522.

The spelling of 204256164 in words is "two hundred four million, two hundred fifty-six thousand, one hundred sixty-four".