304090117 has 4 divisors (see below), whose sum is σ = 320094880. Its totient is φ = 288085356.

The previous prime is 304090091. The next prime is 304090147. The reversal of 304090117 is 711090403.

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 304090117 - 2¹¹ = 304088069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304090091 and 304090100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304090147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8002353 + ... + 8002390.

It is an arithmetic number, because the mean of its divisors is an integer number (80023720).

Almost surely, 2^304090117 is an apocalyptic number.

It is an amenable number.

304090117 is a deficient number, since it is larger than the sum of its proper divisors (16004763).

304090117 is a wasteful number, since it uses less digits than its factorization.

304090117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16004762.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 304090117 is about 17438.1798648827. The cubic root of 304090117 is about 672.4615158346.

The spelling of 304090117 in words is "three hundred four million, ninety thousand, one hundred seventeen".