2530042 has 8 divisors (see below), whose sum is σ = 4018356. Its totient is φ = 1190592.

The previous prime is 2530039. The next prime is 2530043. The reversal of 2530042 is 2400352.

It can be written as a sum of positive squares in 2 ways, for example, as 2468041 + 62001 = 1571^2 + 249^2 .

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

It is a super-2 number, since 2×2530042² = 12802225043528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2529998 and 2530025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37173 + ... + 37240.

2^2530042 is an apocalyptic number.

2530042 is a deficient number, since it is larger than the sum of its proper divisors (1488314).

2530042 is a wasteful number, since it uses less digits than its factorization.

2530042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74432.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2530042 is about 1590.6105745908. The cubic root of 2530042 is about 136.2623611937.

Adding to 2530042 its reverse (2400352), we get a palindrome (4930394).

The spelling of 2530042 in words is "two million, five hundred thirty thousand, forty-two".