3840549 has 4 divisors (see below), whose sum is σ = 5120736. Its totient is φ = 2560364.

The previous prime is 3840547. The next prime is 3840601. The reversal of 3840549 is 9450483.

3840549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3840549 - 2¹ = 3840547 is a prime.

It is a D-number.

3840549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840541) 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 3 ways as a sum of consecutive naturals, for example, 640089 + ... + 640094.

It is an arithmetic number, because the mean of its divisors is an integer number (1280184).

Almost surely, 2^3840549 is an apocalyptic number.

It is an amenable number.

3840549 is a deficient number, since it is larger than the sum of its proper divisors (1280187).

3840549 is a wasteful number, since it uses less digits than its factorization.

3840549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280186.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3840549 is about 1959.7318694148. The cubic root of 3840549 is about 156.6021680076.

The spelling of 3840549 in words is "three million, eight hundred forty thousand, five hundred forty-nine".