19923368 has 8 divisors (see below), whose sum is σ = 37356330. Its totient is φ = 9961680.

The previous prime is 19923349. The next prime is 19923373. The reversal of 19923368 is 86332991.

It can be written as a sum of positive squares in only one way, i.e., 19909444 + 13924 = 4462^2 + 118^2 .

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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245203 + ... + 1245218.

Almost surely, 2^19923368 is an apocalyptic number.

It is an amenable number.

19923368 is a deficient number, since it is larger than the sum of its proper divisors (17432962).

19923368 is a wasteful number, since it uses less digits than its factorization.

19923368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490427 (or 2490423 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 19923368 is about 4463.5600141591. The cubic root of 19923368 is about 271.0946325099.

The spelling of 19923368 in words is "nineteen million, nine hundred twenty-three thousand, three hundred sixty-eight".