1660008 has 64 divisors (see below), whose sum is σ = 4878720. Its totient is φ = 460800.

The previous prime is 1660007. The next prime is 1660037. The reversal of 1660008 is 8000661.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1660007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6768 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (76230).

2^1660008 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 1660008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2439360).

1660008 is an abundant number, since it is smaller than the sum of its proper divisors (3218712).

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

1660008 is a wasteful number, since it uses less digits than its factorization.

1660008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1660008 is about 1288.4129772709. The cubic root of 1660008 is about 118.4050049625.

Adding to 1660008 its reverse (8000661), we get a palindrome (9660669).

The spelling of 1660008 in words is "one million, six hundred sixty thousand, eight".