2005110380 has 144 divisors (see below), whose sum is σ = 5446215936. Its totient is φ = 613992960.

The previous prime is 2005110379. The next prime is 2005110391. The reversal of 2005110380 is 830115002.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 47 ways as a sum of consecutive naturals, for example, 392402 + ... + 397478.

It is an arithmetic number, because the mean of its divisors is an integer number (37820944).

Almost surely, 2^2005110380 is an apocalyptic number.

2005110380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2005110380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723107968).

2005110380 is an abundant number, since it is smaller than the sum of its proper divisors (3441105556).

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

2005110380 is a wasteful number, since it uses less digits than its factorization.

2005110380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144 (or 5135 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2005110380 is about 44778.4588837088. The cubic root of 2005110380 is about 1260.9932497438.

Adding to 2005110380 its reverse (830115002), we get a palindrome (2835225382).

The spelling of 2005110380 in words is "two billion, five million, one hundred ten thousand, three hundred eighty".