303999904 has 72 divisors (see below), whose sum is σ = 658536480. Its totient is φ = 138048768.

The previous prime is 303999889. The next prime is 303999907. The reversal of 303999904 is 409999303.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (303999907) 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 11 ways as a sum of consecutive naturals, for example, 361917 + ... + 362755.

It is an arithmetic number, because the mean of its divisors is an integer number (9146340).

Almost surely, 2^303999904 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 303999904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329268240).

303999904 is an abundant number, since it is smaller than the sum of its proper divisors (354536576).

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

303999904 is a wasteful number, since it uses less digits than its factorization.

303999904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 303999904 is about 17435.5930211737. The cubic root of 303999904 is about 672.3950105814.

The spelling of 303999904 in words is "three hundred three million, nine hundred ninety-nine thousand, nine hundred four".