4181660 has 72 divisors (see below), whose sum is σ = 10859184. Its totient is φ = 1344000.

The previous prime is 4181657. The next prime is 4181669. The reversal of 4181660 is 661814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181669) 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, 16535 + ... + 16785.

It is an arithmetic number, because the mean of its divisors is an integer number (150822).

Almost surely, 2^4181660 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 4181660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5429592).

4181660 is an abundant number, since it is smaller than the sum of its proper divisors (6677524).

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

4181660 is a wasteful number, since it uses less digits than its factorization.

4181660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4181660 is about 2044.9107559989. The cubic root of 4181660 is about 161.1076784401.

The spelling of 4181660 in words is "four million, one hundred eighty-one thousand, six hundred sixty".