6644466 has 12 divisors (see below), whose sum is σ = 14396382. Its totient is φ = 2214816.

The previous prime is 6644459. The next prime is 6644483.

It is a happy number.

6644466 is a `hidden beast` number, since 6 + 644 + 4 + 6 + 6 = 666.

6644466 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 5861241 + 783225 = 2421^2 + 885^2 .

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6644466.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184551 + ... + 184586.

Almost surely, 2^6644466 is an apocalyptic number.

6644466 is an abundant number, since it is smaller than the sum of its proper divisors (7751916).

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

6644466 is a wasteful number, since it uses less digits than its factorization.

6644466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369145 (or 369142 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 6644466 is about 2577.6861717440. The cubic root of 6644466 is about 187.9980571702.

The spelling of 6644466 in words is "six million, six hundred forty-four thousand, four hundred sixty-six".