2185343628 has 24 divisors (see below), whose sum is σ = 5491376688. Its totient is φ = 672413376.

The previous prime is 2185343627. The next prime is 2185343663. The reversal of 2185343628 is 8263435812.

It is a self number, because there is not a number n which added to its sum of digits gives 2185343628.

It is not an unprimeable number, because it can be changed into a prime (2185343621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7004151 + ... + 7004462.

It is an arithmetic number, because the mean of its divisors is an integer number (228807362).

Almost surely, 2^2185343628 is an apocalyptic number.

It is an amenable number.

2185343628 is an abundant number, since it is smaller than the sum of its proper divisors (3306033060).

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

2185343628 is a wasteful number, since it uses less digits than its factorization.

2185343628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008633 (or 14008631 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 2185343628 is about 46747.6590643852. The cubic root of 2185343628 is about 1297.6968347918.

The spelling of 2185343628 in words is "two billion, one hundred eighty-five million, three hundred forty-three thousand, six hundred twenty-eight".