3840555 has 16 divisors (see below), whose sum is σ = 6506784. Its totient is φ = 1927680.

The previous prime is 3840547. The next prime is 3840601. The reversal of 3840555 is 5550483.

It is not a de Polignac number, because 3840555 - 2³ = 3840547 is a prime.

3840555 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7276 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (406674).

Almost surely, 2^3840555 is an apocalyptic number.

3840555 is a deficient number, since it is larger than the sum of its proper divisors (2666229).

3840555 is a wasteful number, since it uses less digits than its factorization.

3840555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15086.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 3840555 is about 1959.7334002359. The cubic root of 3840555 is about 156.6022495595.

The spelling of 3840555 in words is "three million, eight hundred forty thousand, five hundred fifty-five".