19380344 has 8 divisors (see below), whose sum is σ = 36338160. Its totient is φ = 9690168.

The previous prime is 19380343. The next prime is 19380367. The reversal of 19380344 is 44308391.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19380344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19380343) by changing a digit.

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 as a sum of consecutive naturals, namely, 1211264 + ... + 1211279.

It is an arithmetic number, because the mean of its divisors is an integer number (4542270).

Almost surely, 2^19380344 is an apocalyptic number.

It is an amenable number.

19380344 is a deficient number, since it is larger than the sum of its proper divisors (16957816).

19380344 is a wasteful number, since it uses less digits than its factorization.

19380344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422549 (or 2422545 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 19380344 is about 4402.3112111708. The cubic root of 19380344 is about 268.6089590571.

The spelling of 19380344 in words is "nineteen million, three hundred eighty thousand, three hundred forty-four".