4400660 has 48 divisors (see below), whose sum is σ = 10245312. Its totient is φ = 1574400.

The previous prime is 4400639. The next prime is 4400687. The reversal of 4400660 is 660044.

It is a Harshad number since it is a multiple of its sum of digits (20).

4400660 is a modest number, since divided by 660 gives 440 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18140 + ... + 18380.

It is an arithmetic number, because the mean of its divisors is an integer number (213444).

Almost surely, 2^4400660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4400660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5122656).

4400660 is an abundant number, since it is smaller than the sum of its proper divisors (5844652).

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

4400660 is a wasteful number, since it uses less digits than its factorization.

4400660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4400660 is about 2097.7750117684. The cubic root of 4400660 is about 163.8724469232.

The spelling of 4400660 in words is "four million, four hundred thousand, six hundred sixty".