2484221 has 4 divisors (see below), whose sum is σ = 2502492. Its totient is φ = 2465952.

The previous prime is 2484203. The next prime is 2484233. The reversal of 2484221 is 1224842.

2484221 = 1114² + 1115².

It is a happy number.

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 1240996 + 1243225 = 1114^2 + 1115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2484221 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 (2484241) 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, 8930 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (625623).

2^2484221 is an apocalyptic number.

2484221 is the 1115-th centered square number.

It is an amenable number.

2484221 is a deficient number, since it is larger than the sum of its proper divisors (18271).

2484221 is a wasteful number, since it uses less digits than its factorization.

2484221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18270.

The product of its digits is 1024, while the sum is 23.

The square root of 2484221 is about 1576.1411738801. The cubic root of 2484221 is about 135.4347393420.

The spelling of 2484221 in words is "two million, four hundred eighty-four thousand, two hundred twenty-one".