18483156 has 72 divisors (see below), whose sum is σ = 48513920. Its totient is φ = 5930496.

The previous prime is 18483151. The next prime is 18483209. The reversal of 18483156 is 65138481.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18483156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18483151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190500 + ... + 190596.

Almost surely, 2^18483156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18483156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24256960).

18483156 is an abundant number, since it is smaller than the sum of its proper divisors (30030764).

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

18483156 is a wasteful number, since it uses less digits than its factorization.

18483156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 248 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 18483156 is about 4299.2041123910. The cubic root of 18483156 is about 264.3983311905.

The spelling of 18483156 in words is "eighteen million, four hundred eighty-three thousand, one hundred fifty-six".