3845646 has 48 divisors (see below), whose sum is σ = 9944064. Its totient is φ = 1050192.

The previous prime is 3845593. The next prime is 3845651. The reversal of 3845646 is 6465483.

3845646 is a `hidden beast` number, since 3 + 8 + 4 + 5 + 646 = 666.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁷ + 8⁷ + 4⁵ + 5³ + 6 + 4⁸ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3845646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2235 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (207168).

Almost surely, 2^3845646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3845646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4972032).

3845646 is an abundant number, since it is smaller than the sum of its proper divisors (6098418).

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

3845646 is a wasteful number, since it uses less digits than its factorization.

3845646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1362 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 3845646 is about 1961.0318712351. The cubic root of 3845646 is about 156.6714157808.

The spelling of 3845646 in words is "three million, eight hundred forty-five thousand, six hundred forty-six".