304990609 has 16 divisors (see below), whose sum is σ = 384022656. Its totient is φ = 235296000.

The previous prime is 304990607. The next prime is 304990619. The reversal of 304990609 is 906099403.

It is a cyclic number.

It is not a de Polignac number, because 304990609 - 2¹ = 304990607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304990607) 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 15 ways as a sum of consecutive naturals, for example, 11832 + ... + 27385.

It is an arithmetic number, because the mean of its divisors is an integer number (24001416).

Almost surely, 2^304990609 is an apocalyptic number.

It is an amenable number.

304990609 is a deficient number, since it is larger than the sum of its proper divisors (79032047).

304990609 is a wasteful number, since it uses less digits than its factorization.

304990609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39336.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 304990609 is about 17463.9803309555. The cubic root of 304990609 is about 673.1246410454.

The spelling of 304990609 in words is "three hundred four million, nine hundred ninety thousand, six hundred nine".