203040220 has 12 divisors (see below), whose sum is σ = 426384504. Its totient is φ = 81216080.

The previous prime is 203040209. The next prime is 203040259. The reversal of 203040220 is 22040302.

It is a self number, because there is not a number n which added to its sum of digits gives 203040220.

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 3 ways as a sum of consecutive naturals, for example, 5075986 + ... + 5076025.

It is an arithmetic number, because the mean of its divisors is an integer number (35532042).

Almost surely, 2^203040220 is an apocalyptic number.

203040220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203040220 is an abundant number, since it is smaller than the sum of its proper divisors (223344284).

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

203040220 is a wasteful number, since it uses less digits than its factorization.

203040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10152020 (or 10152018 counting only the distinct ones).

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

The square root of 203040220 is about 14249.2182241694. The cubic root of 203040220 is about 587.7518775115.

Adding to 203040220 its reverse (22040302), we get a palindrome (225080522).

The spelling of 203040220 in words is "two hundred three million, forty thousand, two hundred twenty".