2213405305 has 8 divisors (see below), whose sum is σ = 2727872712. Its totient is φ = 1722866688.

The previous prime is 2213405303. The next prime is 2213405329. The reversal of 2213405305 is 5035043122.

It can be written as a sum of positive squares in 4 ways, for example, as 1004382864 + 1209022441 = 31692^2 + 34771^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2213405305 - 2¹ = 2213405303 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 2213405305.

It is not an unprimeable number, because it can be changed into a prime (2213405303) 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, 5981992 + ... + 5982361.

It is an arithmetic number, because the mean of its divisors is an integer number (340984089).

Almost surely, 2^2213405305 is an apocalyptic number.

It is an amenable number.

2213405305 is a deficient number, since it is larger than the sum of its proper divisors (514467407).

2213405305 is a wasteful number, since it uses less digits than its factorization.

2213405305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964395.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2213405305 is about 47046.8416049367. The cubic root of 2213405305 is about 1303.2277396430.

Adding to 2213405305 its reverse (5035043122), we get a palindrome (7248448427).

The spelling of 2213405305 in words is "two billion, two hundred thirteen million, four hundred five thousand, three hundred five".