18246132 has 18 divisors (see below), whose sum is σ = 46122258. Its totient is φ = 6082032.

The previous prime is 18246127. The next prime is 18246149. The reversal of 18246132 is 23164281.

It can be written as a sum of positive squares in only one way, i.e., 16597476 + 1648656 = 4074^2 + 1284^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×18246132² = 665842665922848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18246096 and 18246105.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 253383 + ... + 253454.

Almost surely, 2^18246132 is an apocalyptic number.

18246132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18246132 is an abundant number, since it is smaller than the sum of its proper divisors (27876126).

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

18246132 is a wasteful number, since it uses less digits than its factorization.

18246132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506847 (or 506842 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 18246132 is about 4271.5491335112. The cubic root of 18246132 is about 263.2632696509.

The spelling of 18246132 in words is "eighteen million, two hundred forty-six thousand, one hundred thirty-two".