2409540 has 48 divisors (see below), whose sum is σ = 7711872. Its totient is φ = 550656.

The previous prime is 2409509. The next prime is 2409541. The reversal of 2409540 is 459042.

It is a self number, because there is not a number n which added to its sum of digits gives 2409540.

It is not an unprimeable number, because it can be changed into a prime (2409541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2449 + ... + 3288.

It is an arithmetic number, because the mean of its divisors is an integer number (160664).

2^2409540 is an apocalyptic number.

2409540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2409540 is an abundant number, since it is smaller than the sum of its proper divisors (5302332).

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

2409540 is a wasteful number, since it uses less digits than its factorization.

2409540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756 (or 5754 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2409540 is about 1552.2693065316. The cubic root of 2409540 is about 134.0637552113.

The spelling of 2409540 in words is "two million, four hundred nine thousand, five hundred forty".