19344916 has 6 divisors (see below), whose sum is σ = 33853610. Its totient is φ = 9672456.

The previous prime is 19344911. The next prime is 19344917. The reversal of 19344916 is 61944391.

It can be written as a sum of positive squares in only one way, i.e., 13293316 + 6051600 = 3646^2 + 2460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19344911) by changing a digit.

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, 2418111 + ... + 2418118.

Almost surely, 2^19344916 is an apocalyptic number.

It is an amenable number.

19344916 is a deficient number, since it is larger than the sum of its proper divisors (14508694).

19344916 is a wasteful number, since it uses less digits than its factorization.

19344916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836233 (or 4836231 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 19344916 is about 4398.2855750849. The cubic root of 19344916 is about 268.4451834502.

The spelling of 19344916 in words is "nineteen million, three hundred forty-four thousand, nine hundred sixteen".