18132886 has 8 divisors (see below), whose sum is σ = 27934560. Its totient is φ = 8821368.

The previous prime is 18132871. The next prime is 18132887. The reversal of 18132886 is 68823181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18132887) by changing a digit.

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, 122446 + ... + 122593.

It is an arithmetic number, because the mean of its divisors is an integer number (3491820).

Almost surely, 2^18132886 is an apocalyptic number.

18132886 is a deficient number, since it is larger than the sum of its proper divisors (9801674).

18132886 is a wasteful number, since it uses less digits than its factorization.

18132886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245078.

The product of its digits is 18432, while the sum is 37.

The square root of 18132886 is about 4258.2726544927. The cubic root of 18132886 is about 262.7174844631.

The spelling of 18132886 in words is "eighteen million, one hundred thirty-two thousand, eight hundred eighty-six".