303213330 has 96 divisors (see below), whose sum is σ = 905643648. Its totient is φ = 68947200.

The previous prime is 303213329. The next prime is 303213397. The reversal of 303213330 is 33312303.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131790 + ... + 134070.

It is an arithmetic number, because the mean of its divisors is an integer number (9433788).

Almost surely, 2^303213330 is an apocalyptic number.

303213330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 303213330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452821824).

303213330 is an abundant number, since it is smaller than the sum of its proper divisors (602430318).

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

303213330 is a wasteful number, since it uses less digits than its factorization.

303213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 303213330 is about 17413.0218514766. The cubic root of 303213330 is about 671.8145879844.

Adding to 303213330 its reverse (33312303), we get a palindrome (336525633).

The spelling of 303213330 in words is "three hundred three million, two hundred thirteen thousand, three hundred thirty".