18229860324 has 135 divisors (see below), whose sum is σ = 51693918507. Its totient is φ = 5599466496.

The previous prime is 18229860307. The next prime is 18229860347. The reversal of 18229860324 is 42306892281.

The square root of 18229860324 is 135018.

It is a perfect power (a square), and thus also a powerful number.

18229860324 is a `hidden beast` number, since 18 + 2 + 2 + 9 + 8 + 603 + 24 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1712469924 + 16517390400 = 41382^2 + 128520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18229860324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 31593924 + ... + 31594500.

Almost surely, 2^18229860324 is an apocalyptic number.

18229860324 is the 135018-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18229860324

18229860324 is an abundant number, since it is smaller than the sum of its proper divisors (33464058183).

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

18229860324 is an equidigital number, since it uses as much as digits as its factorization.

18229860324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 18229860324 in words is "eighteen billion, two hundred twenty-nine million, eight hundred sixty thousand, three hundred twenty-four".