2120635 has 8 divisors (see below), whose sum is σ = 2776176. Its totient is φ = 1542240.

The previous prime is 2120621. The next prime is 2120639. The reversal of 2120635 is 5360212.

It is a happy number.

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

It is not a de Polignac number, because 2120635 - 2¹¹ = 2118587 is a prime.

It is a d-powerful number, because it can be written as 2²⁰ + 1 + 2²⁰ + 0 + 6⁴ + 3⁸ + 5⁶ .

It is a Duffinian number.

2120635 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2120639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19224 + ... + 19333.

It is an arithmetic number, because the mean of its divisors is an integer number (347022).

2^2120635 is an apocalyptic number.

2120635 is a deficient number, since it is larger than the sum of its proper divisors (655541).

2120635 is a wasteful number, since it uses less digits than its factorization.

2120635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38573.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2120635 is about 1456.2400214250. The cubic root of 2120635 is about 128.4759906088.

Adding to 2120635 its reverse (5360212), we get a palindrome (7480847).

The spelling of 2120635 in words is "two million, one hundred twenty thousand, six hundred thirty-five".