203030220 has 24 divisors (see below), whose sum is σ = 568484784. Its totient is φ = 54141376.

The previous prime is 203030203. The next prime is 203030239. The reversal of 203030220 is 22030302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 203030196 and 203030205.

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, 1691859 + ... + 1691978.

It is an arithmetic number, because the mean of its divisors is an integer number (23686866).

Almost surely, 2^203030220 is an apocalyptic number.

203030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203030220 is an abundant number, since it is smaller than the sum of its proper divisors (365454564).

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

203030220 is a wasteful number, since it uses less digits than its factorization.

203030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383849 (or 3383847 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 203030220 is about 14248.8673234050. The cubic root of 203030220 is about 587.7422281667.

Adding to 203030220 its reverse (22030302), we get a palindrome (225060522).

The spelling of 203030220 in words is "two hundred three million, thirty thousand, two hundred twenty".