1994992 has 20 divisors (see below), whose sum is σ = 3925096. Its totient is φ = 982080.

The previous prime is 1994989. The next prime is 1995011. The reversal of 1994992 is 2994991.

1994992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 142 + ... + 2002.

2^1994992 is an apocalyptic number.

It is an amenable number.

1994992 is a deficient number, since it is larger than the sum of its proper divisors (1930104).

1994992 is a wasteful number, since it uses less digits than its factorization.

1994992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1930 counting only the distinct ones).

The product of its digits is 52488, while the sum is 43.

The square root of 1994992 is about 1412.4418572104. The cubic root of 1994992 is about 125.8868556822.

Subtracting 1994992 from its reverse (2994991), we obtain a palindrome (999999).

The spelling of 1994992 in words is "one million, nine hundred ninety-four thousand, nine hundred ninety-two".