2185330438 has 16 divisors (see below), whose sum is σ = 3405240000. Its totient is φ = 1050566272.

The previous prime is 2185330423. The next prime is 2185330439. The reversal of 2185330438 is 8340335812.

It is a junction number, because it is equal to n+sod(n) for n = 2185330397 and 2185330406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185330439) 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 7 ways as a sum of consecutive naturals, for example, 64963 + ... + 92686.

It is an arithmetic number, because the mean of its divisors is an integer number (212827500).

Almost surely, 2^2185330438 is an apocalyptic number.

2185330438 is a deficient number, since it is larger than the sum of its proper divisors (1219909562).

2185330438 is a wasteful number, since it uses less digits than its factorization.

2185330438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157919.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2185330438 is about 46747.5179875895. The cubic root of 2185330438 is about 1297.6942239658.

The spelling of 2185330438 in words is "two billion, one hundred eighty-five million, three hundred thirty thousand, four hundred thirty-eight".