18832009 has 8 divisors (see below), whose sum is σ = 22458240. Its totient is φ = 15439776.

The previous prime is 18832003. The next prime is 18832031. The reversal of 18832009 is 90023881.

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 18832009 - 2⁷ = 18831881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18832003) 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, 58324 + ... + 58645.

It is an arithmetic number, because the mean of its divisors is an integer number (2807280).

Almost surely, 2^18832009 is an apocalyptic number.

It is an amenable number.

18832009 is a deficient number, since it is larger than the sum of its proper divisors (3626231).

18832009 is a wasteful number, since it uses less digits than its factorization.

18832009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116999.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 18832009 is about 4339.5862706023. The cubic root of 18832009 is about 266.0514014899.

The spelling of 18832009 in words is "eighteen million, eight hundred thirty-two thousand, nine".