18866748 has 24 divisors (see below), whose sum is σ = 44343040. Its totient is φ = 6243120.

The previous prime is 18866741. The next prime is 18866773. The reversal of 18866748 is 84766881.

It is a junction number, because it is equal to n+sod(n) for n = 18866697 and 18866706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18866741) 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, 3988 + ... + 7323.

Almost surely, 2^18866748 is an apocalyptic number.

It is an amenable number.

18866748 is an abundant number, since it is smaller than the sum of its proper divisors (25476292).

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

18866748 is a wasteful number, since it uses less digits than its factorization.

18866748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457 (or 11455 counting only the distinct ones).

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

The square root of 18866748 is about 4343.5869969416. The cubic root of 18866748 is about 266.2148940908.

The spelling of 18866748 in words is "eighteen million, eight hundred sixty-six thousand, seven hundred forty-eight".