1805250330 has 96 divisors (see below), whose sum is σ = 5118946560. Its totient is φ = 438721920.

The previous prime is 1805250323. The next prime is 1805250353. The reversal of 1805250330 is 330525081.

1805250330 is a `hidden beast` number, since 1 + 80 + 5 + 250 + 330 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1805250294 and 1805250303.

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 47 ways as a sum of consecutive naturals, for example, 82665 + ... + 102195.

It is an arithmetic number, because the mean of its divisors is an integer number (53322360).

Almost surely, 2^1805250330 is an apocalyptic number.

1805250330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1805250330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2559473280).

1805250330 is an abundant number, since it is smaller than the sum of its proper divisors (3313696230).

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

1805250330 is a wasteful number, since it uses less digits than its factorization.

1805250330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19636 (or 19633 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1805250330 is about 42488.2375487617. The cubic root of 1805250330 is about 1217.6219757570.

The spelling of 1805250330 in words is "one billion, eight hundred five million, two hundred fifty thousand, three hundred thirty".