2005440210 has 24 divisors (see below), whose sum is σ = 5214144780. Its totient is φ = 534784032.

The previous prime is 2005440193. The next prime is 2005440223. The reversal of 2005440210 is 120445002.

2005440210 is a `hidden beast` number, since 200 + 5 + 440 + 21 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1799201889 + 206238321 = 42417^2 + 14361^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11141245 + ... + 11141424.

Almost surely, 2^2005440210 is an apocalyptic number.

2005440210 is an abundant number, since it is smaller than the sum of its proper divisors (3208704570).

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

2005440210 is a wasteful number, since it uses less digits than its factorization.

2005440210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22282682 (or 22282679 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2005440210 is about 44782.1416415071. The cubic root of 2005440210 is about 1261.0623881820.

Adding to 2005440210 its reverse (120445002), we get a palindrome (2125885212).

The spelling of 2005440210 in words is "two billion, five million, four hundred forty thousand, two hundred ten".