2449221 has 8 divisors (see below), whose sum is σ = 3273984. Its totient is φ = 1628640.

The previous prime is 2449219. The next prime is 2449231. The reversal of 2449221 is 1229442.

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

It is not a de Polignac number, because 2449221 - 2¹ = 2449219 is a prime.

2449221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2449191 and 2449200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (409248).

2^2449221 is an apocalyptic number.

It is an amenable number.

2449221 is a deficient number, since it is larger than the sum of its proper divisors (824763).

2449221 is a wasteful number, since it uses less digits than its factorization.

2449221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091.

The product of its digits is 1152, while the sum is 24.

The square root of 2449221 is about 1564.9987220442. The cubic root of 2449221 is about 134.7956854510.

The spelling of 2449221 in words is "two million, four hundred forty-nine thousand, two hundred twenty-one".