2520244 has 18 divisors (see below), whose sum is σ = 4511234. Its totient is φ = 1231920.

The previous prime is 2520241. The next prime is 2520247. The reversal of 2520244 is 4420252.

2520244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2520241) and next prime (2520247).

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 1127844 = 1180^2 + 1062^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520241) 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 5 ways as a sum of consecutive naturals, for example, 13834 + ... + 14014.

2^2520244 is an apocalyptic number.

It is an amenable number.

2520244 is a deficient number, since it is larger than the sum of its proper divisors (1990990).

2520244 is a wasteful number, since it uses less digits than its factorization.

2520244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2520244 is about 1587.5276375547. The cubic root of 2520244 is about 136.0862342368.

Adding to 2520244 its reverse (4420252), we get a palindrome (6940496).

The spelling of 2520244 in words is "two million, five hundred twenty thousand, two hundred forty-four".