303430212 has 84 divisors (see below), whose sum is σ = 843109596. Its totient is φ = 95178240.

The previous prime is 303430207. The next prime is 303430213. The reversal of 303430212 is 212034303.

It can be written as a sum of positive squares in 2 ways, for example, as 129823236 + 173606976 = 11394^2 + 13176^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (303430213) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 46512 + ... + 52632.

It is an arithmetic number, because the mean of its divisors is an integer number (10037019).

Almost surely, 2^303430212 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 303430212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421554798).

303430212 is an abundant number, since it is smaller than the sum of its proper divisors (539679384).

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

303430212 is a wasteful number, since it uses less digits than its factorization.

303430212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160 (or 6143 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303430212 is about 17419.2483190292. The cubic root of 303430212 is about 671.9747280037.

Adding to 303430212 its reverse (212034303), we get a palindrome (515464515).

The spelling of 303430212 in words is "three hundred three million, four hundred thirty thousand, two hundred twelve".