1666032 has 40 divisors (see below), whose sum is σ = 4382160. Its totient is φ = 545280.

The previous prime is 1666019. The next prime is 1666037. The reversal of 1666032 is 2306661.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1665993 and 1666011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666037) 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, 2644 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (109554).

2^1666032 is an apocalyptic number.

1666032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1666032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2191080).

1666032 is an abundant number, since it is smaller than the sum of its proper divisors (2716128).

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

1666032 is a wasteful number, since it uses less digits than its factorization.

1666032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1666032 is about 1290.7486199876. The cubic root of 1666032 is about 118.5480586282.

The spelling of 1666032 in words is "one million, six hundred sixty-six thousand, thirty-two".