204000860 has 24 divisors (see below), whose sum is σ = 489602400. Its totient is φ = 69943104.

The previous prime is 204000859. The next prime is 204000887. The reversal of 204000860 is 68000402.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728435 + ... + 728714.

It is an arithmetic number, because the mean of its divisors is an integer number (20400100).

Almost surely, 2^204000860 is an apocalyptic number.

204000860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204000860 is an abundant number, since it is smaller than the sum of its proper divisors (285601540).

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

204000860 is a wasteful number, since it uses less digits than its factorization.

204000860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457165 (or 1457163 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 204000860 is about 14282.8869630758. The cubic root of 204000860 is about 588.6773589124.

The spelling of 204000860 in words is "two hundred four million, eight hundred sixty", and thus it is an aban number.