303912 has 80 divisors (see below), whose sum is σ = 987360. Its totient is φ = 85536.

The previous prime is 303907. The next prime is 303917. The reversal of 303912 is 219303.

It is an interprime number because it is at equal distance from previous prime (303907) and next prime (303917).

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (303917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4503 + ... + 4569.

It is an arithmetic number, because the mean of its divisors is an integer number (12342).

2³⁰³⁹¹² 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 303912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493680).

303912 is an abundant number, since it is smaller than the sum of its proper divisors (683448).

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

303912 is a wasteful number, since it uses less digits than its factorization.

303912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 303912 is about 551.2821419201. The cubic root of 303912 is about 67.2330194871.

The spelling of 303912 in words is "three hundred three thousand, nine hundred twelve".