204007280 has 40 divisors (see below), whose sum is σ = 489623424. Its totient is φ = 78969600.

The previous prime is 204007273. The next prime is 204007283. The reversal of 204007280 is 82700402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204007283) 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 7 ways as a sum of consecutive naturals, for example, 38651 + ... + 43610.

Almost surely, 2^204007280 is an apocalyptic number.

204007280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204007280 is an abundant number, since it is smaller than the sum of its proper divisors (285616144).

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

204007280 is a wasteful number, since it uses less digits than its factorization.

204007280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82305 (or 82299 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 204007280 is about 14283.1117057874. Note that the first 3 decimals coincide. The cubic root of 204007280 is about 588.6835341625.

Adding to 204007280 its reverse (82700402), we get a palindrome (286707682).

The spelling of 204007280 in words is "two hundred four million, seven thousand, two hundred eighty".