304991444 has 12 divisors (see below), whose sum is σ = 548160564. Its totient is φ = 148374144.

The previous prime is 304991443. The next prime is 304991459. The reversal of 304991444 is 444199403.

It is a happy number.

304991444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 192376900 + 112614544 = 13870^2 + 10612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304991398 and 304991407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304991443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030229 + ... + 1030524.

It is an arithmetic number, because the mean of its divisors is an integer number (45680047).

Almost surely, 2^304991444 is an apocalyptic number.

It is an amenable number.

304991444 is a deficient number, since it is larger than the sum of its proper divisors (243169120).

304991444 is a wasteful number, since it uses less digits than its factorization.

304991444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060794 (or 2060792 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 304991444 is about 17464.0042372876. The cubic root of 304991444 is about 673.1252553359.

The spelling of 304991444 in words is "three hundred four million, nine hundred ninety-one thousand, four hundred forty-four".