18648201 has 32 divisors (see below), whose sum is σ = 30941568. Its totient is φ = 9815040.

The previous prime is 18648199. The next prime is 18648211. The reversal of 18648201 is 10284681.

It is not a de Polignac number, because 18648201 - 2¹ = 18648199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18648211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6015 + ... + 8571.

It is an arithmetic number, because the mean of its divisors is an integer number (966924).

Almost surely, 2^18648201 is an apocalyptic number.

18648201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18648201 is a deficient number, since it is larger than the sum of its proper divisors (12293367).

18648201 is a wasteful number, since it uses less digits than its factorization.

18648201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18648201 is about 4318.3562845138. The cubic root of 18648201 is about 265.1829803054.

The spelling of 18648201 in words is "eighteen million, six hundred forty-eight thousand, two hundred one".