1994685 has 48 divisors (see below), whose sum is σ = 4034688. Its totient is φ = 823680.

The previous prime is 1994669. The next prime is 1994687. The reversal of 1994685 is 5864991.

It is not a de Polignac number, because 1994685 - 2⁴ = 1994669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12627 + ... + 12783.

It is an arithmetic number, because the mean of its divisors is an integer number (84056).

2^1994685 is an apocalyptic number.

1994685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1994685 is an abundant number, since it is smaller than the sum of its proper divisors (2040003).

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

1994685 is a wasteful number, since it uses less digits than its factorization.

1994685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 183 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 1994685 is about 1412.3331759893. Note that the first 3 decimals coincide. The cubic root of 1994685 is about 125.8803979708.

It can be divided in two parts, 199 and 4685, that added together give a palindrome (4884).

The spelling of 1994685 in words is "one million, nine hundred ninety-four thousand, six hundred eighty-five".