19713496 has 32 divisors (see below), whose sum is σ = 40824000. Its totient is φ = 8849440.

The previous prime is 19713487. The next prime is 19713511. The reversal of 19713496 is 69431791.

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, 5955 + ... + 8653.

It is an arithmetic number, because the mean of its divisors is an integer number (1275750).

Almost surely, 2^19713496 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 19713496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20412000).

19713496 is an abundant number, since it is smaller than the sum of its proper divisors (21110504).

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

19713496 is a wasteful number, since it uses less digits than its factorization.

19713496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799 (or 2795 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 19713496 is about 4439.9882882728. The cubic root of 19713496 is about 270.1393702049.

The spelling of 19713496 in words is "nineteen million, seven hundred thirteen thousand, four hundred ninety-six".