3840819 has 8 divisors (see below), whose sum is σ = 5148672. Its totient is φ = 2546760.

The previous prime is 3840791. The next prime is 3840821. The reversal of 3840819 is 9180483.

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

It is not a de Polignac number, because 3840819 - 2⁵ = 3840787 is a prime.

It is a super-2 number, since 2×3840819² = 29503781181522, which contains 22 as substring.

3840819 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3840819.

It is not an unprimeable number, because it can be changed into a prime (3840829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2779 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (643584).

Almost surely, 2^3840819 is an apocalyptic number.

3840819 is a deficient number, since it is larger than the sum of its proper divisors (1307853).

3840819 is a wasteful number, since it uses less digits than its factorization.

3840819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 3840819 is about 1959.8007551790. The cubic root of 3840819 is about 156.6058377602.

The spelling of 3840819 in words is "three million, eight hundred forty thousand, eight hundred nineteen".