18033005 has 16 divisors (see below), whose sum is σ = 23015664. Its totient is φ = 13516800.

The previous prime is 18032969. The next prime is 18033011. The reversal of 18033005 is 50033081.

It can be written as a sum of positive squares in 8 ways, for example, as 835396 + 17197609 = 914^2 + 4147^2 .

It is not a de Polignac number, because 18033005 - 2⁶ = 18032941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29705 + ... + 30305.

It is an arithmetic number, because the mean of its divisors is an integer number (1438479).

Almost surely, 2^18033005 is an apocalyptic number.

It is an amenable number.

18033005 is a deficient number, since it is larger than the sum of its proper divisors (4982659).

18033005 is a wasteful number, since it uses less digits than its factorization.

18033005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 18033005 is about 4246.5285822658. The cubic root of 18033005 is about 262.2342223021.

Adding to 18033005 its reverse (50033081), we get a palindrome (68066086).

The spelling of 18033005 in words is "eighteen million, thirty-three thousand, five".