19344216 has 16 divisors (see below), whose sum is σ = 48360600. Its totient is φ = 6448064.

The previous prime is 19344211. The next prime is 19344257. The reversal of 19344216 is 61244391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19344211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402981 + ... + 403028.

Almost surely, 2^19344216 is an apocalyptic number.

It is an amenable number.

19344216 is an abundant number, since it is smaller than the sum of its proper divisors (29016384).

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

19344216 is a wasteful number, since it uses less digits than its factorization.

19344216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806018 (or 806014 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 19344216 is about 4398.2059979041. The cubic root of 19344216 is about 268.4419454953.

The spelling of 19344216 in words is "nineteen million, three hundred forty-four thousand, two hundred sixteen".