19023808 has 14 divisors (see below), whose sum is σ = 37750496. Its totient is φ = 9511872.

The previous prime is 19023787. The next prime is 19023821. The reversal of 19023808 is 80832091.

It is a self number, because there is not a number n which added to its sum of digits gives 19023808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148560 + ... + 148687.

It is an arithmetic number, because the mean of its divisors is an integer number (2696464).

Almost surely, 2^19023808 is an apocalyptic number.

It is an amenable number.

19023808 is a deficient number, since it is larger than the sum of its proper divisors (18726688).

19023808 is an equidigital number, since it uses as much as digits as its factorization.

19023808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297259 (or 297249 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 19023808 is about 4361.6290534616. The cubic root of 19023808 is about 266.9515732752.

Adding to 19023808 its reverse (80832091), we get a palindrome (99855899).

The spelling of 19023808 in words is "nineteen million, twenty-three thousand, eight hundred eight".