19703424 has 64 divisors (see below), whose sum is σ = 56377440. Its totient is φ = 6061056.

The previous prime is 19703413. The next prime is 19703429. The reversal of 19703424 is 42430791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 19703391 and 19703400.

It is not an unprimeable number, because it can be changed into a prime (19703429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3019 + ... + 6965.

Almost surely, 2^19703424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19703424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28188720).

19703424 is an abundant number, since it is smaller than the sum of its proper divisors (36674016).

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

19703424 is a wasteful number, since it uses less digits than its factorization.

19703424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977 (or 3965 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 19703424 is about 4438.8539061339. The cubic root of 19703424 is about 270.0933559203.

The spelling of 19703424 in words is "nineteen million, seven hundred three thousand, four hundred twenty-four".