1815730304 has 64 divisors (see below), whose sum is σ = 3741115200. Its totient is φ = 877132800.

The previous prime is 1815730289. The next prime is 1815730337. The reversal of 1815730304 is 4030375181.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

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 7 ways as a sum of consecutive naturals, for example, 713867 + ... + 716405.

It is an arithmetic number, because the mean of its divisors is an integer number (58454925).

Almost surely, 2^1815730304 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 1815730304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870557600).

1815730304 is an abundant number, since it is smaller than the sum of its proper divisors (1925384896).

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

1815730304 is a wasteful number, since it uses less digits than its factorization.

1815730304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1815730304 is about 42611.3870227196. The cubic root of 1815730304 is about 1219.9736409247.

The spelling of 1815730304 in words is "one billion, eight hundred fifteen million, seven hundred thirty thousand, three hundred four".