19380064 has 24 divisors (see below), whose sum is σ = 41623848. Its totient is φ = 8808960.

The previous prime is 19380059. The next prime is 19380077. The reversal of 19380064 is 46008391.

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 3 ways as a sum of consecutive naturals, for example, 27177 + ... + 27880.

It is an arithmetic number, because the mean of its divisors is an integer number (1734327).

Almost surely, 2^19380064 is an apocalyptic number.

It is an amenable number.

19380064 is an abundant number, since it is smaller than the sum of its proper divisors (22243784).

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

19380064 is a wasteful number, since it uses less digits than its factorization.

19380064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55078 (or 55070 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 19380064 is about 4402.2794095786. The cubic root of 19380064 is about 268.6076654634.

It can be divided in two parts, 19 and 380064, that added together give a palindrome (380083).

The spelling of 19380064 in words is "nineteen million, three hundred eighty thousand, sixty-four".