6646350 has 48 divisors (see below), whose sum is σ = 16784640. Its totient is φ = 1740000.

The previous prime is 6646331. The next prime is 6646357. The reversal of 6646350 is 536466.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8475 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (349680).

Almost surely, 2^6646350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6646350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8392320).

6646350 is an abundant number, since it is smaller than the sum of its proper divisors (10138290).

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

6646350 is a wasteful number, since it uses less digits than its factorization.

6646350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 6646350 is about 2578.0515898639. The cubic root of 6646350 is about 188.0158240792.

It can be divided in two parts, 6646 and 350, that added together give a palindrome (6996).

The spelling of 6646350 in words is "six million, six hundred forty-six thousand, three hundred fifty".