2213746 has 8 divisors (see below), whose sum is σ = 3326940. Its totient is φ = 1104768.

The previous prime is 2213711. The next prime is 2213759. The reversal of 2213746 is 6473122.

2213746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2117025 + 96721 = 1455^2 + 311^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2213746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1470 + ... + 2566.

2^2213746 is an apocalyptic number.

2213746 is a deficient number, since it is larger than the sum of its proper divisors (1113194).

2213746 is a wasteful number, since it uses less digits than its factorization.

2213746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108.

The product of its digits is 2016, while the sum is 25.

The square root of 2213746 is about 1487.8662574304. The cubic root of 2213746 is about 130.3294601986.

Adding to 2213746 its reverse (6473122), we get a palindrome (8686868).

The spelling of 2213746 in words is "two million, two hundred thirteen thousand, seven hundred forty-six".