204002120 has 32 divisors (see below), whose sum is σ = 524577600. Its totient is φ = 69943488.

The previous prime is 204002087. The next prime is 204002143. The reversal of 204002120 is 21200402.

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 7 ways as a sum of consecutive naturals, for example, 364010 + ... + 364569.

It is an arithmetic number, because the mean of its divisors is an integer number (16393050).

Almost surely, 2^204002120 is an apocalyptic number.

204002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204002120 is an abundant number, since it is smaller than the sum of its proper divisors (320575480).

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

204002120 is a wasteful number, since it uses less digits than its factorization.

204002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728597 (or 728593 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 204002120 is about 14282.9310717373. The cubic root of 204002120 is about 588.6785708876.

Adding to 204002120 its reverse (21200402), we get a palindrome (225202522).

The spelling of 204002120 in words is "two hundred four million, two thousand, one hundred twenty".