3840545 has 8 divisors (see below), whose sum is σ = 4716096. Its totient is φ = 3000816.

The previous prime is 3840541. The next prime is 3840547. The reversal of 3840545 is 5450483.

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

It is a cyclic number.

It is not a de Polignac number, because 3840545 - 2² = 3840541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3840541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8717 + ... + 9146.

It is an arithmetic number, because the mean of its divisors is an integer number (589512).

Almost surely, 2^3840545 is an apocalyptic number.

It is an amenable number.

3840545 is a deficient number, since it is larger than the sum of its proper divisors (875551).

3840545 is a wasteful number, since it uses less digits than its factorization.

3840545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17911.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 3840545 is about 1959.7308488668. The cubic root of 3840545 is about 156.6021136396.

The spelling of 3840545 in words is "three million, eight hundred forty thousand, five hundred forty-five".