304728436 has 6 divisors (see below), whose sum is σ = 533274770. Its totient is φ = 152364216.

The previous prime is 304728427. The next prime is 304728439. The reversal of 304728436 is 634827403.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 287505936 + 17222500 = 16956^2 + 4150^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304728395 and 304728404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304728439) 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 as a sum of consecutive naturals, namely, 38091051 + ... + 38091058.

Almost surely, 2^304728436 is an apocalyptic number.

It is an amenable number.

304728436 is a deficient number, since it is larger than the sum of its proper divisors (228546334).

304728436 is a wasteful number, since it uses less digits than its factorization.

304728436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76182113 (or 76182111 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 304728436 is about 17456.4726104674. The cubic root of 304728436 is about 672.9317108457.

The spelling of 304728436 in words is "three hundred four million, seven hundred twenty-eight thousand, four hundred thirty-six".