1666952 has 48 divisors (see below), whose sum is σ = 3831360. Its totient is φ = 665856.

The previous prime is 1666943. The next prime is 1666991. The reversal of 1666952 is 2596661.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16133 + ... + 16235.

It is an arithmetic number, because the mean of its divisors is an integer number (79820).

2^1666952 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 1666952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915680).

1666952 is an abundant number, since it is smaller than the sum of its proper divisors (2164408).

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

1666952 is a wasteful number, since it uses less digits than its factorization.

1666952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 129 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 1666952 is about 1291.1049531312. The cubic root of 1666952 is about 118.5698757651.

The spelling of 1666952 in words is "one million, six hundred sixty-six thousand, nine hundred fifty-two".