19324864 has 28 divisors (see below), whose sum is σ = 41299384. Its totient is φ = 8918784.

The previous prime is 19324847. The next prime is 19324867. The reversal of 19324864 is 46842391.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19324867) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10782 + ... + 12445.

It is an arithmetic number, because the mean of its divisors is an integer number (1474978).

Almost surely, 2^19324864 is an apocalyptic number.

It is an amenable number.

19324864 is an abundant number, since it is smaller than the sum of its proper divisors (21974520).

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

19324864 is a wasteful number, since it uses less digits than its factorization.

19324864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23252 (or 23242 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 19324864 is about 4396.0054595053. The cubic root of 19324864 is about 268.3523989728.

The spelling of 19324864 in words is "nineteen million, three hundred twenty-four thousand, eight hundred sixty-four".