303013220 has 48 divisors (see below), whose sum is σ = 660054528. Its totient is φ = 116724480.

The previous prime is 303013211. The next prime is 303013223. The reversal of 303013220 is 22310303.

It is a super-2 number, since 2×303013220² = 183634022989536800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 303013195 and 303013204.

It is not an unprimeable number, because it can be changed into a prime (303013223) 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, 139664 + ... + 141816.

It is an arithmetic number, because the mean of its divisors is an integer number (13751136).

Almost surely, 2^303013220 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 303013220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330027264).

303013220 is an abundant number, since it is smaller than the sum of its proper divisors (357041308).

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

303013220 is a wasteful number, since it uses less digits than its factorization.

303013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 303013220 is about 17407.2749159655. The cubic root of 303013220 is about 671.6667642256. Note that the first 3 decimals are identical.

Adding to 303013220 its reverse (22310303), we get a palindrome (325323523).

The spelling of 303013220 in words is "three hundred three million, thirteen thousand, two hundred twenty".