18113882 has 8 divisors (see below), whose sum is σ = 27833652. Its totient is φ = 8836000.

The previous prime is 18113881. The next prime is 18113929. The reversal of 18113882 is 28831181.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17901361 + 212521 = 4231^2 + 461^2 .

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

It is a super-2 number, since 2×18113882² = 656225442219848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18113881) 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 3 ways as a sum of consecutive naturals, for example, 110369 + ... + 110532.

Almost surely, 2^18113882 is an apocalyptic number.

18113882 is a deficient number, since it is larger than the sum of its proper divisors (9719770).

18113882 is a wasteful number, since it uses less digits than its factorization.

18113882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220944.

The product of its digits is 3072, while the sum is 32.

The square root of 18113882 is about 4256.0406483021. The cubic root of 18113882 is about 262.6256728550.

It can be divided in two parts, 181138 and 82, that multiplied together give a square (14853316 = 3854²).

The spelling of 18113882 in words is "eighteen million, one hundred thirteen thousand, eight hundred eighty-two".