1666334 has 8 divisors (see below), whose sum is σ = 2524080. Its totient is φ = 824976.

The previous prime is 1666321. The next prime is 1666339. The reversal of 1666334 is 4336661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1666297 and 1666306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3839 + ... + 4250.

It is an arithmetic number, because the mean of its divisors is an integer number (315510).

2^1666334 is an apocalyptic number.

1666334 is a deficient number, since it is larger than the sum of its proper divisors (857746).

1666334 is a wasteful number, since it uses less digits than its factorization.

1666334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8194.

The product of its digits is 7776, while the sum is 29.

The square root of 1666334 is about 1290.8656010600. The cubic root of 1666334 is about 118.5552212258. Note that the first 3 decimals are identical.

The spelling of 1666334 in words is "one million, six hundred sixty-six thousand, three hundred thirty-four".