19993324 has 12 divisors (see below), whose sum is σ = 37679824. Its totient is φ = 9227664.

The previous prime is 19993321. The next prime is 19993327. The reversal of 19993324 is 42339991.

It is an interprime number because it is at equal distance from previous prime (19993321) and next prime (19993327).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19993321) 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 3 ways as a sum of consecutive naturals, for example, 192192 + ... + 192295.

Almost surely, 2^19993324 is an apocalyptic number.

It is an amenable number.

19993324 is a deficient number, since it is larger than the sum of its proper divisors (17686500).

19993324 is a wasteful number, since it uses less digits than its factorization.

19993324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384504 (or 384502 counting only the distinct ones).

The product of its digits is 52488, while the sum is 40.

The square root of 19993324 is about 4471.3894932113. The cubic root of 19993324 is about 271.4115558783.

The spelling of 19993324 in words is "nineteen million, nine hundred ninety-three thousand, three hundred twenty-four".