1994633 has 12 divisors (see below), whose sum is σ = 2161152. Its totient is φ = 1838160.

The previous prime is 1994623. The next prime is 1994647. The reversal of 1994633 is 3364991.

It is not a de Polignac number, because 1994633 - 2⁶ = 1994569 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1994593 and 1994602.

It is not an unprimeable number, because it can be changed into a prime (1994623) 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 11 ways as a sum of consecutive naturals, for example, 42416 + ... + 42462.

It is an arithmetic number, because the mean of its divisors is an integer number (180096).

2^1994633 is an apocalyptic number.

It is an amenable number.

1994633 is a deficient number, since it is larger than the sum of its proper divisors (166519).

1994633 is an equidigital number, since it uses as much as digits as its factorization.

1994633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 115 counting only the distinct ones).

The product of its digits is 17496, while the sum is 35.

The square root of 1994633 is about 1412.3147666154. The cubic root of 1994633 is about 125.8793040909.

The spelling of 1994633 in words is "one million, nine hundred ninety-four thousand, six hundred thirty-three".