2120004635 has 16 divisors (see below), whose sum is σ = 3078461376. Its totient is φ = 1368204288.

The previous prime is 2120004617. The next prime is 2120004643. The reversal of 2120004635 is 5364000212.

It is a cyclic number.

It is not a de Polignac number, because 2120004635 - 2¹² = 2120000539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120004635.

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, 1780922 + ... + 1782111.

It is an arithmetic number, because the mean of its divisors is an integer number (192403836).

Almost surely, 2^2120004635 is an apocalyptic number.

2120004635 is a deficient number, since it is larger than the sum of its proper divisors (958456741).

2120004635 is a wasteful number, since it uses less digits than its factorization.

2120004635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563062.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2120004635 is about 46043.5080657415. The cubic root of 2120004635 is about 1284.6325939174.

Adding to 2120004635 its reverse (5364000212), we get a palindrome (7484004847).

The spelling of 2120004635 in words is "two billion, one hundred twenty million, four thousand, six hundred thirty-five".