18630001 has 8 divisors (see below), whose sum is σ = 20490624. Its totient is φ = 16830480.

The previous prime is 18629999. The next prime is 18630037. The reversal of 18630001 is 10003681.

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 18630001 - 2¹ = 18629999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18630061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14635 + ... + 15856.

It is an arithmetic number, because the mean of its divisors is an integer number (2561328).

Almost surely, 2^18630001 is an apocalyptic number.

It is an amenable number.

18630001 is a deficient number, since it is larger than the sum of its proper divisors (1860623).

18630001 is a wasteful number, since it uses less digits than its factorization.

18630001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30551.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 18630001 is about 4316.2484868228. The cubic root of 18630001 is about 265.0966824153.

Adding to 18630001 its reverse (10003681), we get a palindrome (28633682).

The spelling of 18630001 in words is "eighteen million, six hundred thirty thousand, one".