203204020 has 24 divisors (see below), whose sum is σ = 427034664. Its totient is φ = 81223296.

The previous prime is 203203991. The next prime is 203204033. The reversal of 203204020 is 20402302.

It can be written as a sum of positive squares in 4 ways, for example, as 11048976 + 192155044 = 3324^2 + 13862^2 .

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, 34834 + ... + 40246.

It is an arithmetic number, because the mean of its divisors is an integer number (17793111).

Almost surely, 2^203204020 is an apocalyptic number.

203204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203204020 is an abundant number, since it is smaller than the sum of its proper divisors (223830644).

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

203204020 is a wasteful number, since it uses less digits than its factorization.

203204020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299 (or 7297 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 203204020 is about 14254.9647491672. The cubic root of 203204020 is about 587.9098887009.

Adding to 203204020 its reverse (20402302), we get a palindrome (223606322).

The spelling of 203204020 in words is "two hundred three million, two hundred four thousand, twenty".