18030609 has 12 divisors (see below), whose sum is σ = 26106496. Its totient is φ = 11991672.

The previous prime is 18030589. The next prime is 18030629. The reversal of 18030609 is 90603081.

It is an interprime number because it is at equal distance from previous prime (18030589) and next prime (18030629).

It is not a de Polignac number, because 18030609 - 2¹² = 18026513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18030629) 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 11 ways as a sum of consecutive naturals, for example, 2004 + ... + 6330.

Almost surely, 2^18030609 is an apocalyptic number.

It is an amenable number.

18030609 is a deficient number, since it is larger than the sum of its proper divisors (8075887).

18030609 is a wasteful number, since it uses less digits than its factorization.

18030609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796 (or 4793 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 18030609 is about 4246.2464601104. The cubic root of 18030609 is about 262.2226076539. Note that the first 3 decimals are identical.

The spelling of 18030609 in words is "eighteen million, thirty thousand, six hundred nine".