6441606 has 40 divisors (see below), whose sum is σ = 15289560. Its totient is φ = 2020032.

The previous prime is 6441601. The next prime is 6441607. The reversal of 6441606 is 6061446.

6441606 is a `hidden beast` number, since 644 + 16 + 0 + 6 = 666.

It is a super-5 number, since 5×6441606⁵ (a number of 35 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 6441606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441601) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1585 + ... + 3923.

It is an arithmetic number, because the mean of its divisors is an integer number (382239).

Almost surely, 2^6441606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6441606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7644780).

6441606 is an abundant number, since it is smaller than the sum of its proper divisors (8847954).

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

6441606 is a wasteful number, since it uses less digits than its factorization.

6441606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6441606 is about 2538.0319146930. The cubic root of 6441606 is about 186.0650136931.

The spelling of 6441606 in words is "six million, four hundred forty-one thousand, six hundred six".