304049409 has 4 divisors (see below), whose sum is σ = 405399216. Its totient is φ = 202699604.

The previous prime is 304049377. The next prime is 304049413. The reversal of 304049409 is 904940403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 304049409 - 2⁵ = 304049377 is a prime.

It is a super-2 number, since 2×304049409² = 184892086226498562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 304049409.

It is not an unprimeable number, because it can be changed into a prime (304049429) 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 3 ways as a sum of consecutive naturals, for example, 50674899 + ... + 50674904.

It is an arithmetic number, because the mean of its divisors is an integer number (101349804).

Almost surely, 2^304049409 is an apocalyptic number.

It is an amenable number.

304049409 is a deficient number, since it is larger than the sum of its proper divisors (101349807).

304049409 is a wasteful number, since it uses less digits than its factorization.

304049409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101349806.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 304049409 is about 17437.0126168447. The cubic root of 304049409 is about 672.4315074221.

The spelling of 304049409 in words is "three hundred four million, forty-nine thousand, four hundred nine".