304399740 has 48 divisors (see below), whose sum is σ = 875361312. Its totient is φ = 78978816.

The previous prime is 304399727. The next prime is 304399787. The reversal of 304399740 is 47993403.

304399740 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66339 + ... + 70778.

It is an arithmetic number, because the mean of its divisors is an integer number (18236694).

Almost surely, 2^304399740 is an apocalyptic number.

304399740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304399740 is an abundant number, since it is smaller than the sum of its proper divisors (570961572).

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

304399740 is a wasteful number, since it uses less digits than its factorization.

304399740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137166 (or 137164 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 304399740 is about 17447.0553389390. The cubic root of 304399740 is about 672.6896707075.

The spelling of 304399740 in words is "three hundred four million, three hundred ninety-nine thousand, seven hundred forty".