19884104 has 8 divisors (see below), whose sum is σ = 37282710. Its totient is φ = 9942048.

The previous prime is 19884079. The next prime is 19884143. The reversal of 19884104 is 40148891.

It can be written as a sum of positive squares in only one way, i.e., 14455204 + 5428900 = 3802^2 + 2330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1242749 + ... + 1242764.

Almost surely, 2^19884104 is an apocalyptic number.

It is an amenable number.

19884104 is a deficient number, since it is larger than the sum of its proper divisors (17398606).

19884104 is a wasteful number, since it uses less digits than its factorization.

19884104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485519 (or 2485515 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 19884104 is about 4459.1595620700. The cubic root of 19884104 is about 270.9164287090.

The spelling of 19884104 in words is "nineteen million, eight hundred eighty-four thousand, one hundred four".