2103210 has 24 divisors (see below), whose sum is σ = 5468580. Its totient is φ = 560832.

The previous prime is 2103193. The next prime is 2103229. The reversal of 2103210 is 123012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1929321 + 173889 = 1389^2 + 417^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2103192 and 2103201.

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, 11595 + ... + 11774.

2^2103210 is an apocalyptic number.

2103210 is an abundant number, since it is smaller than the sum of its proper divisors (3365370).

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

2103210 is a wasteful number, since it uses less digits than its factorization.

2103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382 (or 23379 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2103210 is about 1450.2448069205. The cubic root of 2103210 is about 128.1231318387.

Adding to 2103210 its reverse (123012), we get a palindrome (2226222).

The spelling of 2103210 in words is "two million, one hundred three thousand, two hundred ten".