19368920 has 32 divisors (see below), whose sum is σ = 44597520. Its totient is φ = 7566720.

The previous prime is 19368919. The next prime is 19368931. The reversal of 19368920 is 2986391.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3911 + ... + 7350.

Almost surely, 2^19368920 is an apocalyptic number.

19368920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19368920 is an abundant number, since it is smaller than the sum of its proper divisors (25228600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19368920 is a wasteful number, since it uses less digits than its factorization.

19368920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11315 (or 11311 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 19368920 is about 4401.0135196339. The cubic root of 19368920 is about 268.5561703160.

The spelling of 19368920 in words is "nineteen million, three hundred sixty-eight thousand, nine hundred twenty".