2489221 has 8 divisors (see below), whose sum is σ = 2968704. Its totient is φ = 2040720.

The previous prime is 2489219. The next prime is 2489237. The reversal of 2489221 is 1229842.

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 2489221 - 2¹ = 2489219 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 2489221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7570 + ... + 7891.

It is an arithmetic number, because the mean of its divisors is an integer number (371088).

2^2489221 is an apocalyptic number.

It is an amenable number.

2489221 is a deficient number, since it is larger than the sum of its proper divisors (479483).

2489221 is a wasteful number, since it uses less digits than its factorization.

2489221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491.

The product of its digits is 2304, while the sum is 28.

The square root of 2489221 is about 1577.7265289016. The cubic root of 2489221 is about 135.5255417689.

The spelling of 2489221 in words is "two million, four hundred eighty-nine thousand, two hundred twenty-one".