19994046 has 8 divisors (see below), whose sum is σ = 39988104. Its totient is φ = 6664680.

The previous prime is 19994033. The next prime is 19994047. The reversal of 19994046 is 64049991.

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

19994046 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 19993989 and 19994007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19994047) 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, 1666165 + ... + 1666176.

It is an arithmetic number, because the mean of its divisors is an integer number (4998513).

Almost surely, 2^19994046 is an apocalyptic number.

19994046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19994046 is a wasteful number, since it uses less digits than its factorization.

19994046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332346.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 19994046 is about 4471.4702280123. The cubic root of 19994046 is about 271.4148229153.

The spelling of 19994046 in words is "nineteen million, nine hundred ninety-four thousand, forty-six".