18768648 has 32 divisors (see below), whose sum is σ = 47030400. Its totient is φ = 6241728.

The previous prime is 18768641. The next prime is 18768653. The reversal of 18768648 is 84686781.

It is a junction number, because it is equal to n+sod(n) for n = 18768597 and 18768606.

It is not an unprimeable number, because it can be changed into a prime (18768641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16465 + ... + 17567.

It is an arithmetic number, because the mean of its divisors is an integer number (1469700).

Almost surely, 2^18768648 is an apocalyptic number.

It is an amenable number.

18768648 is an abundant number, since it is smaller than the sum of its proper divisors (28261752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18768648 is a wasteful number, since it uses less digits than its factorization.

18768648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1817 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 18768648 is about 4332.2797693593. The cubic root of 18768648 is about 265.7526862560.

The spelling of 18768648 in words is "eighteen million, seven hundred sixty-eight thousand, six hundred forty-eight".