2389221 has 12 divisors (see below), whose sum is σ = 3500640. Its totient is φ = 1569960.

The previous prime is 2389213. The next prime is 2389241. The reversal of 2389221 is 1229832.

It is a happy number.

2389221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2389221 - 2³ = 2389213 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 3¹³ + 8⁶ + 9⁶ + 2⁸ + 2¹⁰ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389241) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1231 + ... + 2508.

It is an arithmetic number, because the mean of its divisors is an integer number (291720).

2^2389221 is an apocalyptic number.

It is an amenable number.

2389221 is a deficient number, since it is larger than the sum of its proper divisors (1111419).

2389221 is a wasteful number, since it uses less digits than its factorization.

2389221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816 (or 3813 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2389221 is about 1545.7105162352. The cubic root of 2389221 is about 133.6858498085.

The spelling of 2389221 in words is "two million, three hundred eighty-nine thousand, two hundred twenty-one".