19928414 has 16 divisors (see below), whose sum is σ = 32679936. Its totient is φ = 9039000.

The previous prime is 19928401. The next prime is 19928453. The reversal of 19928414 is 41482991.

It is a congruent number.

It is an unprimeable number.

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, 16739 + ... + 17889.

It is an arithmetic number, because the mean of its divisors is an integer number (2042496).

Almost surely, 2^19928414 is an apocalyptic number.

19928414 is a deficient number, since it is larger than the sum of its proper divisors (12751522).

19928414 is a wasteful number, since it uses less digits than its factorization.

19928414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951.

The product of its digits is 20736, while the sum is 38.

The square root of 19928414 is about 4464.1252222580. The cubic root of 19928414 is about 271.1175173295.

The spelling of 19928414 in words is "nineteen million, nine hundred twenty-eight thousand, four hundred fourteen".