2005689376 has 24 divisors (see below), whose sum is σ = 4180978620. Its totient is φ = 943853568.

The previous prime is 2005689349. The next prime is 2005689403. The reversal of 2005689376 is 6739865002.

It is an interprime number because it is at equal distance from previous prime (2005689349) and next prime (2005689403).

It can be written as a sum of positive squares in 2 ways, for example, as 1495832976 + 509856400 = 38676^2 + 22580^2 .

It is an unprimeable number.

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, 1842921 + ... + 1844008.

Almost surely, 2^2005689376 is an apocalyptic number.

It is an amenable number.

2005689376 is an abundant number, since it is smaller than the sum of its proper divisors (2175289244).

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

2005689376 is a wasteful number, since it uses less digits than its factorization.

2005689376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686956 (or 3686948 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 2005689376 is about 44784.9235346003. The cubic root of 2005689376 is about 1261.1146129350.

The spelling of 2005689376 in words is "two billion, five million, six hundred eighty-nine thousand, three hundred seventy-six".