4401668 has 12 divisors (see below), whose sum is σ = 7911372. Its totient is φ = 2141280.

The previous prime is 4401667. The next prime is 4401697. The reversal of 4401668 is 8661044.

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 473344 = 1982^2 + 688^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4401668.

It is not an unprimeable number, because it can be changed into a prime (4401667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14723 + ... + 15018.

It is an arithmetic number, because the mean of its divisors is an integer number (659281).

Almost surely, 2^4401668 is an apocalyptic number.

It is an amenable number.

4401668 is a deficient number, since it is larger than the sum of its proper divisors (3509704).

4401668 is a wasteful number, since it uses less digits than its factorization.

4401668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29782 (or 29780 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 4401668 is about 2098.0152525661. The cubic root of 4401668 is about 163.8849579872.

The spelling of 4401668 in words is "four million, four hundred one thousand, six hundred sixty-eight".