1805428716 has 288 divisors, whose sum is σ = 5748664320. Its totient is φ = 435456000.

The previous prime is 1805428687. The next prime is 1805428717. The reversal of 1805428716 is 6178245081.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1805428717) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 4502116 + ... + 4502516.

It is an arithmetic number, because the mean of its divisors is an integer number (19960640).

Almost surely, 2^1805428716 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 1805428716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874332160).

1805428716 is an abundant number, since it is smaller than the sum of its proper divisors (3943235604).

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

1805428716 is a wasteful number, since it uses less digits than its factorization.

1805428716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 1805428716 is about 42490.3367367217. The cubic root of 1805428716 is about 1217.6620809170.

The spelling of 1805428716 in words is "one billion, eight hundred five million, four hundred twenty-eight thousand, seven hundred sixteen".