2138210 has 8 divisors (see below), whose sum is σ = 3848796. Its totient is φ = 855280.

The previous prime is 2138207. The next prime is 2138221. The reversal of 2138210 is 128312.

It can be written as a sum of positive squares in 2 ways, for example, as 2007889 + 130321 = 1417^2 + 361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106901 + ... + 106920.

2^2138210 is an apocalyptic number.

2138210 is a deficient number, since it is larger than the sum of its proper divisors (1710586).

2138210 is a wasteful number, since it uses less digits than its factorization.

2138210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213828.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2138210 is about 1462.2619464378. The cubic root of 2138210 is about 128.8299343384.

The spelling of 2138210 in words is "two million, one hundred thirty-eight thousand, two hundred ten".