2540826 has 12 divisors (see below), whose sum is σ = 5505162. Its totient is φ = 846936.

The previous prime is 2540821. The next prime is 2540831. The reversal of 2540826 is 6280452.

It is an interprime number because it is at equal distance from previous prime (2540821) and next prime (2540831).

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 423801 = 1455^2 + 651^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2540826.

It is not an unprimeable number, because it can be changed into a prime (2540821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70561 + ... + 70596.

2^2540826 is an apocalyptic number.

2540826 is an abundant number, since it is smaller than the sum of its proper divisors (2964336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2540826 is a wasteful number, since it uses less digits than its factorization.

2540826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141165 (or 141162 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2540826 is about 1593.9968632341. The cubic root of 2540826 is about 136.4556874235.

The spelling of 2540826 in words is "two million, five hundred forty thousand, eight hundred twenty-six".