2189371830 has 16 divisors (see below), whose sum is σ = 5254492464. Its totient is φ = 583832480.

The previous prime is 2189371829. The next prime is 2189371841. The reversal of 2189371830 is 381739812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36489501 + ... + 36489560.

It is an arithmetic number, because the mean of its divisors is an integer number (328405779).

Almost surely, 2^2189371830 is an apocalyptic number.

2189371830 is an abundant number, since it is smaller than the sum of its proper divisors (3065120634).

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

2189371830 is a wasteful number, since it uses less digits than its factorization.

2189371830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72979071.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 2189371830 is about 46790.7237601643. The cubic root of 2189371830 is about 1298.4936852821.

The spelling of 2189371830 in words is "two billion, one hundred eighty-nine million, three hundred seventy-one thousand, eight hundred thirty".