18988652 has 12 divisors (see below), whose sum is σ = 33364296. Its totient is φ = 9456000.

The previous prime is 18988637. The next prime is 18988663. The reversal of 18988652 is 25688981.

It is a junction number, because it is equal to n+sod(n) for n = 18988597 and 18988606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8453 + ... + 10460.

It is an arithmetic number, because the mean of its divisors is an integer number (2780358).

Almost surely, 2^18988652 is an apocalyptic number.

It is an amenable number.

18988652 is a deficient number, since it is larger than the sum of its proper divisors (14375644).

18988652 is a wasteful number, since it uses less digits than its factorization.

18988652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19168 (or 19166 counting only the distinct ones).

The product of its digits is 276480, while the sum is 47.

The square root of 18988652 is about 4357.5970442435. The cubic root of 18988652 is about 266.7870296924.

The spelling of 18988652 in words is "eighteen million, nine hundred eighty-eight thousand, six hundred fifty-two".