2540285 has 8 divisors (see below), whose sum is σ = 3325536. Its totient is φ = 1847440.

The previous prime is 2540269. The next prime is 2540323. The reversal of 2540285 is 5820452.

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

It is not a de Polignac number, because 2540285 - 2⁴ = 2540269 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23039 + ... + 23148.

It is an arithmetic number, because the mean of its divisors is an integer number (415692).

2^2540285 is an apocalyptic number.

It is an amenable number.

2540285 is a deficient number, since it is larger than the sum of its proper divisors (785251).

2540285 is a wasteful number, since it uses less digits than its factorization.

2540285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46203.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2540285 is about 1593.8271549952. The cubic root of 2540285 is about 136.4460018899.

The spelling of 2540285 in words is "two million, five hundred forty thousand, two hundred eighty-five".