4081660 has 24 divisors (see below), whose sum is σ = 9351216. Its totient is φ = 1484160.

The previous prime is 4081657. The next prime is 4081661. The reversal of 4081660 is 661804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9057 + ... + 9496.

It is an arithmetic number, because the mean of its divisors is an integer number (389634).

Almost surely, 2^4081660 is an apocalyptic number.

It is an amenable number.

4081660 is an abundant number, since it is smaller than the sum of its proper divisors (5269556).

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

4081660 is a wasteful number, since it uses less digits than its factorization.

4081660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18573 (or 18571 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4081660 is about 2020.3118571151. The cubic root of 4081660 is about 159.8130629259.

The spelling of 4081660 in words is "four million, eighty-one thousand, six hundred sixty".