1800000324 has 72 divisors (see below), whose sum is σ = 4823346528. Its totient is φ = 564038400.

The previous prime is 1800000317. The next prime is 1800000329. The reversal of 1800000324 is 4230000081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

1800000324 is a modest number, since divided by 324 gives 180 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1800000297 and 1800000306.

It is not an unprimeable number, because it can be changed into a prime (1800000329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 886999 + ... + 889025.

It is an arithmetic number, because the mean of its divisors is an integer number (66990924).

Almost surely, 2^1800000324 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 1800000324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2411673264).

1800000324 is an abundant number, since it is smaller than the sum of its proper divisors (3023346204).

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

1800000324 is a wasteful number, since it uses less digits than its factorization.

1800000324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505 (or 3500 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1800000324 is about 42426.4106895693. The cubic root of 1800000324 is about 1216.4404721011.

The spelling of 1800000324 in words is "one billion, eight hundred million, three hundred twenty-four", and thus it is an aban number.