19321996 has 24 divisors (see below), whose sum is σ = 36345456. Its totient is φ = 8954880.

The previous prime is 19321987. The next prime is 19321997. The reversal of 19321996 is 69912391.

It is not an unprimeable number, because it can be changed into a prime (19321997) 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 in 7 ways as a sum of consecutive naturals, for example, 2436 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (1514394).

Almost surely, 2^19321996 is an apocalyptic number.

It is an amenable number.

19321996 is a deficient number, since it is larger than the sum of its proper divisors (17023460).

19321996 is a wasteful number, since it uses less digits than its factorization.

19321996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329 (or 4327 counting only the distinct ones).

The product of its digits is 26244, while the sum is 40.

The square root of 19321996 is about 4395.6792421650. The cubic root of 19321996 is about 268.3391229370.

The spelling of 19321996 in words is "nineteen million, three hundred twenty-one thousand, nine hundred ninety-six".