4215220405 has 16 divisors (see below), whose sum is σ = 5560239168. Its totient is φ = 3042208000.

The previous prime is 4215220391. The next prime is 4215220421. The reversal of 4215220405 is 5040225124.

It is not a de Polignac number, because 4215220405 - 2⁷ = 4215220277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4215220405.

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, 285316 + ... + 299725.

It is an arithmetic number, because the mean of its divisors is an integer number (347514948).

Almost surely, 2^4215220405 is an apocalyptic number.

It is an amenable number.

4215220405 is a deficient number, since it is larger than the sum of its proper divisors (1345018763).

4215220405 is a wasteful number, since it uses less digits than its factorization.

4215220405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585188.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 4215220405 is about 64924.7287633918. The cubic root of 4215220405 is about 1615.3752676815.

Adding to 4215220405 its reverse (5040225124), we get a palindrome (9255445529).

The spelling of 4215220405 in words is "four billion, two hundred fifteen million, two hundred twenty thousand, four hundred five".