4049540 has 48 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 1447680.

The previous prime is 4049537. The next prime is 4049543. The reversal of 4049540 is 459404.

4049540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4049537) and next prime (4049543).

It is not an unprimeable number, because it can be changed into a prime (4049543) 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 15 ways as a sum of consecutive naturals, for example, 17264 + ... + 17496.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^4049540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4049540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440).

4049540 is an abundant number, since it is smaller than the sum of its proper divisors (5385340).

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

4049540 is a wasteful number, since it uses less digits than its factorization.

4049540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4049540 is about 2012.3468885856. The cubic root of 4049540 is about 159.3927502978.

The spelling of 4049540 in words is "four million, forty-nine thousand, five hundred forty".