210044005 has 16 divisors (see below), whose sum is σ = 261794160. Its totient is φ = 161644032.

The previous prime is 210043997. The next prime is 210044011. The reversal of 210044005 is 500440012.

It can be written as a sum of positive squares in 8 ways, for example, as 199809 + 209844196 = 447^2 + 14486^2 .

It is a cyclic number.

It is not a de Polignac number, because 210044005 - 2³ = 210043997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210044005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10087 + ... + 22843.

It is an arithmetic number, because the mean of its divisors is an integer number (16362135).

Almost surely, 2^210044005 is an apocalyptic number.

It is an amenable number.

210044005 is a deficient number, since it is larger than the sum of its proper divisors (51750155).

210044005 is a wasteful number, since it uses less digits than its factorization.

210044005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12888.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 210044005 is about 14492.8949834048. The cubic root of 210044005 is about 594.4337101998.

Adding to 210044005 its reverse (500440012), we get a palindrome (710484017).

The spelling of 210044005 in words is "two hundred ten million, forty-four thousand, five".