203413220 has 24 divisors (see below), whose sum is σ = 437103744. Its totient is φ = 79472736.

The previous prime is 203413213. The next prime is 203413237. The reversal of 203413220 is 22314302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117404 + ... + 119123.

It is an arithmetic number, because the mean of its divisors is an integer number (18212656).

Almost surely, 2^203413220 is an apocalyptic number.

203413220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203413220 is an abundant number, since it is smaller than the sum of its proper divisors (233690524).

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

203413220 is a wasteful number, since it uses less digits than its factorization.

203413220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236579 (or 236577 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 203413220 is about 14262.3006559250. The cubic root of 203413220 is about 588.1115719914. Note that the first 3 decimals are identical.

Adding to 203413220 its reverse (22314302), we get a palindrome (225727522).

The spelling of 203413220 in words is "two hundred three million, four hundred thirteen thousand, two hundred twenty".