2530642 has 4 divisors (see below), whose sum is σ = 3795966. Its totient is φ = 1265320.

The previous prime is 2530597. The next prime is 2530663. The reversal of 2530642 is 2460352.

It is a happy number.

2530642 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., 2042041 + 488601 = 1429^2 + 699^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2³ + 5⁹ + 3⁸ + 0 + 6⁶ + 4 + 2¹⁹ .

It is an unprimeable number.

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, 632659 + ... + 632662.

2^2530642 is an apocalyptic number.

2530642 is a deficient number, since it is larger than the sum of its proper divisors (1265324).

2530642 is a wasteful number, since it uses less digits than its factorization.

2530642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265323.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2530642 is about 1590.7991702286. The cubic root of 2530642 is about 136.2731318916.

Adding to 2530642 its reverse (2460352), we get a palindrome (4990994).

The spelling of 2530642 in words is "two million, five hundred thirty thousand, six hundred forty-two".