19994006 has 24 divisors (see below), whose sum is σ = 32482296. Its totient is φ = 9197760.

The previous prime is 19994003. The next prime is 19994033. The reversal of 19994006 is 60049991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19994003) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 152561 + ... + 152691.

It is an arithmetic number, because the mean of its divisors is an integer number (1353429).

Almost surely, 2^19994006 is an apocalyptic number.

19994006 is a deficient number, since it is larger than the sum of its proper divisors (12488290).

19994006 is a wasteful number, since it uses less digits than its factorization.

19994006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 19994006 is about 4471.4657552082. The cubic root of 19994006 is about 271.4146419181.

The spelling of 19994006 in words is "nineteen million, nine hundred ninety-four thousand, six".