2221346 has 8 divisors (see below), whose sum is σ = 3339804. Its totient is φ = 1108080.

The previous prime is 2221343. The next prime is 2221379. The reversal of 2221346 is 6431222.

It can be written as a sum of positive squares in 2 ways, for example, as 2217121 + 4225 = 1489^2 + 65^2 .

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

It is a d-powerful number, because it can be written as 2⁵ + 2¹¹ + 2¹³ + 1 + 3¹² + 4² + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (2221343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56 + ... + 2108.

2^2221346 is an apocalyptic number.

2221346 is a deficient number, since it is larger than the sum of its proper divisors (1118458).

2221346 is a wasteful number, since it uses less digits than its factorization.

2221346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596.

The product of its digits is 576, while the sum is 20.

The square root of 2221346 is about 1490.4180621557. The cubic root of 2221346 is about 130.4784343141.

Adding to 2221346 its reverse (6431222), we get a palindrome (8652568).

The spelling of 2221346 in words is "two million, two hundred twenty-one thousand, three hundred forty-six".