2540546 has 8 divisors (see below), whose sum is σ = 3863244. Its totient is φ = 1252800.

The previous prime is 2540539. The next prime is 2540563. The reversal of 2540546 is 6450452.

It can be written as a sum of positive squares in 2 ways, for example, as 2524921 + 15625 = 1589^2 + 125^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8555 + ... + 8846.

2^2540546 is an apocalyptic number.

2540546 is a deficient number, since it is larger than the sum of its proper divisors (1322698).

2540546 is a wasteful number, since it uses less digits than its factorization.

2540546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17476.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2540546 is about 1593.9090312813. The cubic root of 2540546 is about 136.4506747497.

Adding to 2540546 its reverse (6450452), we get a palindrome (8990998).

The spelling of 2540546 in words is "two million, five hundred forty thousand, five hundred forty-six".