18080002 has 8 divisors (see below), whose sum is σ = 27383616. Its totient is φ = 8952132.

The previous prime is 18079987. The next prime is 18080003. The reversal of 18080002 is 20008081.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (18080003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43678 + ... + 44089.

It is an arithmetic number, because the mean of its divisors is an integer number (3422952).

Almost surely, 2^18080002 is an apocalyptic number.

18080002 is a deficient number, since it is larger than the sum of its proper divisors (9303614).

18080002 is a wasteful number, since it uses less digits than its factorization.

18080002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87872.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 18080002 is about 4252.0585602741. The cubic root of 18080002 is about 262.4618333020.

Adding to 18080002 its reverse (20008081), we get a palindrome (38088083).

The spelling of 18080002 in words is "eighteen million, eighty thousand, two".