2149180828 has 12 divisors (see below), whose sum is σ = 3762484992. Its totient is φ = 1074185120.

The previous prime is 2149180777. The next prime is 2149180829. The reversal of 2149180828 is 8280819412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149180829) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 89233 + ... + 110728.

It is an arithmetic number, because the mean of its divisors is an integer number (313540416).

Almost surely, 2^2149180828 is an apocalyptic number.

It is an amenable number.

2149180828 is a deficient number, since it is larger than the sum of its proper divisors (1613304164).

2149180828 is a wasteful number, since it uses less digits than its factorization.

2149180828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202652 (or 202650 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 2149180828 is about 46359.2582770691. The cubic root of 2149180828 is about 1290.4989412633.

The spelling of 2149180828 in words is "two billion, one hundred forty-nine million, one hundred eighty thousand, eight hundred twenty-eight".