18648801 has 12 divisors (see below), whose sum is σ = 27510912. Its totient is φ = 12167736.

The previous prime is 18648797. The next prime is 18648803. The reversal of 18648801 is 10884681.

18648801 is a `hidden beast` number, since 1 + 8 + 648 + 8 + 0 + 1 = 666.

It is not a de Polignac number, because 18648801 - 2² = 18648797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18648803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21621 + ... + 22466.

It is an arithmetic number, because the mean of its divisors is an integer number (2292576).

Almost surely, 2^18648801 is an apocalyptic number.

It is an amenable number.

18648801 is a deficient number, since it is larger than the sum of its proper divisors (8862111).

18648801 is a wasteful number, since it uses less digits than its factorization.

18648801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44140 (or 44137 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 18648801 is about 4318.4257548324. The cubic root of 18648801 is about 265.1858243346.

The spelling of 18648801 in words is "eighteen million, six hundred forty-eight thousand, eight hundred one".