303940 has 48 divisors (see below), whose sum is σ = 790272. Its totient is φ = 95616.

The previous prime is 303937. The next prime is 303959. The reversal of 303940 is 49303.

303940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1737 + ... + 1903.

It is an arithmetic number, because the mean of its divisors is an integer number (16464).

2³⁰³⁹⁴⁰ 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 303940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395136).

303940 is an abundant number, since it is smaller than the sum of its proper divisors (486332).

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

303940 is a wasteful number, since it uses less digits than its factorization.

303940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 303940 is about 551.3075366798. The cubic root of 303940 is about 67.2350841931.

The spelling of 303940 in words is "three hundred three thousand, nine hundred forty".