18383136 has 24 divisors (see below), whose sum is σ = 48255984. Its totient is φ = 6127680.

The previous prime is 18383119. The next prime is 18383201. The reversal of 18383136 is 63138381.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 18383097 and 18383106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95650 + ... + 95841.

It is an arithmetic number, because the mean of its divisors is an integer number (2010666).

Almost surely, 2^18383136 is an apocalyptic number.

18383136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18383136 is an abundant number, since it is smaller than the sum of its proper divisors (29872848).

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

18383136 is a wasteful number, since it uses less digits than its factorization.

18383136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191504 (or 191496 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 18383136 is about 4287.5559471568. Note that the first 3 decimals coincide. The cubic root of 18383136 is about 263.9205454191.

The spelling of 18383136 in words is "eighteen million, three hundred eighty-three thousand, one hundred thirty-six".