1994566 has 8 divisors (see below), whose sum is σ = 3419280. Its totient is φ = 854808.

The previous prime is 1994543. The next prime is 1994567. The reversal of 1994566 is 6654991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71221 + ... + 71248.

It is an arithmetic number, because the mean of its divisors is an integer number (427410).

2^1994566 is an apocalyptic number.

1994566 is a deficient number, since it is larger than the sum of its proper divisors (1424714).

1994566 is a wasteful number, since it uses less digits than its factorization.

1994566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142478.

The product of its digits is 58320, while the sum is 40.

The square root of 1994566 is about 1412.2910464915. The cubic root of 1994566 is about 125.8778946407.

The spelling of 1994566 in words is "one million, nine hundred ninety-four thousand, five hundred sixty-six".