303000220 has 48 divisors (see below), whose sum is σ = 673142400. Its totient is φ = 114246720.

The previous prime is 303000179. The next prime is 303000227. The reversal of 303000220 is 22000303.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 303000197 and 303000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303000227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78291 + ... + 82069.

It is an arithmetic number, because the mean of its divisors is an integer number (14023800).

Almost surely, 2^303000220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336571200).

303000220 is an abundant number, since it is smaller than the sum of its proper divisors (370142180).

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

303000220 is a wasteful number, since it uses less digits than its factorization.

303000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018 (or 4016 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 303000220 is about 17406.9015048629. The cubic root of 303000220 is about 671.6571587120.

Adding to 303000220 its reverse (22000303), we get a palindrome (325000523).

The spelling of 303000220 in words is "three hundred three million, two hundred twenty", and thus it is an aban number.