2540939 has 8 divisors (see below), whose sum is σ = 2712528. Its totient is φ = 2371840.

The previous prime is 2540933. The next prime is 2540957. The reversal of 2540939 is 9390452.

2540939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2540939 - 2¹² = 2536843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540933) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1784 + ... + 2874.

It is an arithmetic number, because the mean of its divisors is an integer number (339066).

2^2540939 is an apocalyptic number.

2540939 is a deficient number, since it is larger than the sum of its proper divisors (171589).

2540939 is a wasteful number, since it uses less digits than its factorization.

2540939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2540939 is about 1594.0323083300. The cubic root of 2540939 is about 136.4577102912.

The spelling of 2540939 in words is "two million, five hundred forty thousand, nine hundred thirty-nine".