3842856 has 32 divisors (see below), whose sum is σ = 10675200. Its totient is φ = 1280880.

The previous prime is 3842851. The next prime is 3842873. The reversal of 3842856 is 6582483.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 3³ + 8 + 4⁸ + 2²¹ + 8³ + 5 + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3842856.

It is not an unprimeable number, because it can be changed into a prime (3842851) 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, 8680 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (333600).

Almost surely, 2^3842856 is an apocalyptic number.

3842856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3842856 is an abundant number, since it is smaller than the sum of its proper divisors (6832344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3842856 is a wasteful number, since it uses less digits than its factorization.

3842856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17806 (or 17796 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 3842856 is about 1960.3203819784. The cubic root of 3842856 is about 156.6335184634.

It can be divided in two parts, 384 and 2856, that added together give a triangular number (3240 = T₈₀).

The spelling of 3842856 in words is "three million, eight hundred forty-two thousand, eight hundred fifty-six".