204819012 has 72 divisors (see below), whose sum is σ = 547616160. Its totient is φ = 64368000.

The previous prime is 204818981. The next prime is 204819037. The reversal of 204819012 is 210918402.

It is a super-2 number, since 2×204819012² = 83901655353312288, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 171088 + ... + 172280.

It is an arithmetic number, because the mean of its divisors is an integer number (7605780).

Almost surely, 2^204819012 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 204819012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273808080).

204819012 is an abundant number, since it is smaller than the sum of its proper divisors (342797148).

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

204819012 is a wasteful number, since it uses less digits than its factorization.

204819012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 204819012 is about 14311.4992925270. The cubic root of 204819012 is about 589.4632790115.

The spelling of 204819012 in words is "two hundred four million, eight hundred nineteen thousand, twelve".