3858816 has 64 divisors (see below), whose sum is σ = 11052720. Its totient is φ = 1185792.

The previous prime is 3858793. The next prime is 3858817. The reversal of 3858816 is 6188583.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858817) 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, 4606 + ... + 5378.

Almost surely, 2^3858816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3858816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5526360).

3858816 is an abundant number, since it is smaller than the sum of its proper divisors (7193904).

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

3858816 is a wasteful number, since it uses less digits than its factorization.

3858816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 791 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 3858816 is about 1964.3869272625. The cubic root of 3858816 is about 156.8500603730.

The spelling of 3858816 in words is "three million, eight hundred fifty-eight thousand, eight hundred sixteen".