304990361 has 8 divisors (see below), whose sum is σ = 339777480. Its totient is φ = 271821312.

The previous prime is 304990321. The next prime is 304990391. The reversal of 304990361 is 163099403.

It can be written as a sum of positive squares in 4 ways, for example, as 55950400 + 249039961 = 7480^2 + 15781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304990361 - 2¹⁰ = 304989337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304990321) 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 7 ways as a sum of consecutive naturals, for example, 404120 + ... + 404873.

It is an arithmetic number, because the mean of its divisors is an integer number (42472185).

Almost surely, 2^304990361 is an apocalyptic number.

It is an amenable number.

304990361 is a deficient number, since it is larger than the sum of its proper divisors (34787119).

304990361 is a wasteful number, since it uses less digits than its factorization.

304990361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809035.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 304990361 is about 17463.9732306254. The cubic root of 304990361 is about 673.1244585972.

The spelling of 304990361 in words is "three hundred four million, nine hundred ninety thousand, three hundred sixty-one".