2520242 has 4 divisors (see below), whose sum is σ = 3780366. Its totient is φ = 1260120.

The previous prime is 2520241. The next prime is 2520247. The reversal of 2520242 is 2420252.

2520242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 83521 = 1561^2 + 289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2520242.

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 as a sum of consecutive naturals, namely, 630059 + ... + 630062.

2^2520242 is an apocalyptic number.

2520242 is a deficient number, since it is larger than the sum of its proper divisors (1260124).

2520242 is a wasteful number, since it uses less digits than its factorization.

2520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260123.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2520242 is about 1587.5270076443. The cubic root of 2520242 is about 136.0861982386.

Adding to 2520242 its reverse (2420252), we get a palindrome (4940494).

The spelling of 2520242 in words is "two million, five hundred twenty thousand, two hundred forty-two".