2354221 has 4 divisors (see below), whose sum is σ = 2360092. Its totient is φ = 2348352.

The previous prime is 2354213. The next prime is 2354227. The reversal of 2354221 is 1224532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 741321 + 1612900 = 861^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2354221 - 2³ = 2354213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2354227) 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, 2286 + ... + 3151.

It is an arithmetic number, because the mean of its divisors is an integer number (590023).

2^2354221 is an apocalyptic number.

It is an amenable number.

2354221 is a deficient number, since it is larger than the sum of its proper divisors (5871).

2354221 is an equidigital number, since it uses as much as digits as its factorization.

2354221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5870.

The product of its digits is 480, while the sum is 19.

The square root of 2354221 is about 1534.3470924142. The cubic root of 2354221 is about 133.0298423622.

Adding to 2354221 its reverse (1224532), we get a palindrome (3578753).

The spelling of 2354221 in words is "two million, three hundred fifty-four thousand, two hundred twenty-one".