3840355 has 8 divisors (see below), whose sum is σ = 4653792. Its totient is φ = 3042048.

The previous prime is 3840349. The next prime is 3840359. The reversal of 3840355 is 5530483.

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 3840355 - 2⁷ = 3840227 is a prime.

It is a Duffinian number.

3840355 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3840359) 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, 3214 + ... + 4243.

It is an arithmetic number, because the mean of its divisors is an integer number (581724).

Almost surely, 2^3840355 is an apocalyptic number.

3840355 is a deficient number, since it is larger than the sum of its proper divisors (813437).

3840355 is a wasteful number, since it uses less digits than its factorization.

3840355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 3840355 is about 1959.6823722226. The cubic root of 3840355 is about 156.5995311162.

The spelling of 3840355 in words is "three million, eight hundred forty thousand, three hundred fifty-five".