4406661 has 24 divisors (see below), whose sum is σ = 7350720. Its totient is φ = 2491776.

The previous prime is 4406659. The next prime is 4406671. The reversal of 4406661 is 1666044.

It is not a de Polignac number, because 4406661 - 2¹ = 4406659 is a prime.

It is a super-2 number, since 2×4406661² = 38837322337842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4406671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6810 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (306280).

Almost surely, 2^4406661 is an apocalyptic number.

It is an amenable number.

4406661 is a deficient number, since it is larger than the sum of its proper divisors (2944059).

4406661 is a wasteful number, since it uses less digits than its factorization.

4406661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 742 counting only the distinct ones).

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

The square root of 4406661 is about 2099.2048494609. The cubic root of 4406661 is about 163.9469018069.

The spelling of 4406661 in words is "four million, four hundred six thousand, six hundred sixty-one".