2510842 has 4 divisors (see below), whose sum is σ = 3766266. Its totient is φ = 1255420.

The previous prime is 2510803. The next prime is 2510843. The reversal of 2510842 is 2480152.

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., 2374681 + 136161 = 1541^2 + 369^2 .

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 an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2510843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627709 + ... + 627712.

2^2510842 is an apocalyptic number.

2510842 is a deficient number, since it is larger than the sum of its proper divisors (1255424).

2510842 is a wasteful number, since it uses less digits than its factorization.

2510842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255423.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2510842 is about 1584.5636623374. The cubic root of 2510842 is about 135.9167959925.

Adding to 2510842 its reverse (2480152), we get a palindrome (4990994).

The spelling of 2510842 in words is "two million, five hundred ten thousand, eight hundred forty-two".