1666532 has 24 divisors (see below), whose sum is σ = 3398976. Its totient is φ = 700128.

The previous prime is 1666531. The next prime is 1666541. The reversal of 1666532 is 2356661.

It is a junction number, because it is equal to n+sod(n) for n = 1666495 and 1666504.

It is not an unprimeable number, because it can be changed into a prime (1666531) 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, 923 + ... + 2045.

It is an arithmetic number, because the mean of its divisors is an integer number (141624).

2^1666532 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 1666532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1699488).

1666532 is an abundant number, since it is smaller than the sum of its proper divisors (1732444).

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

1666532 is a wasteful number, since it uses less digits than its factorization.

1666532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187 (or 1185 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 1666532 is about 1290.9422915065. The cubic root of 1666532 is about 118.5599167639.

The spelling of 1666532 in words is "one million, six hundred sixty-six thousand, five hundred thirty-two".