204851000 has 64 divisors (see below), whose sum is σ = 483425280. Its totient is φ = 81244800.

The previous prime is 204850973. The next prime is 204851039. The reversal of 204851000 is 158402.

204851000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126194 + ... + 127806.

It is an arithmetic number, because the mean of its divisors is an integer number (7553520).

Almost surely, 2^204851000 is an apocalyptic number.

204851000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204851000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241712640).

204851000 is an abundant number, since it is smaller than the sum of its proper divisors (278574280).

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

204851000 is a wasteful number, since it uses less digits than its factorization.

204851000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 204851000 is about 14312.6168117504. The cubic root of 204851000 is about 589.4939642649.

The spelling of 204851000 in words is "two hundred four million, eight hundred fifty-one thousand".