304049440 has 48 divisors (see below), whose sum is σ = 735852600. Its totient is φ = 118650880.

The previous prime is 304049429. The next prime is 304049509. The reversal of 304049440 is 44940403.

It can be written as a sum of positive squares in 4 ways, for example, as 112614544 + 191434896 = 10612^2 + 13836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304049399 and 304049408.

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 7 ways as a sum of consecutive naturals, for example, 16615 + ... + 29734.

Almost surely, 2^304049440 is an apocalyptic number.

It is an amenable number.

304049440 is an abundant number, since it is smaller than the sum of its proper divisors (431803160).

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

304049440 is a wasteful number, since it uses less digits than its factorization.

304049440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46405 (or 46397 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 304049440 is about 17437.0135057584. The cubic root of 304049440 is about 672.4315302752.

Adding to 304049440 its reverse (44940403), we get a palindrome (348989843).

The spelling of 304049440 in words is "three hundred four million, forty-nine thousand, four hundred forty".