19421096 has 8 divisors (see below), whose sum is σ = 36414570. Its totient is φ = 9710544.

The previous prime is 19421093. The next prime is 19421111. The reversal of 19421096 is 69012491.

It can be written as a sum of positive squares in only one way, i.e., 19272100 + 148996 = 4390^2 + 386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (19421093) 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 as a sum of consecutive naturals, namely, 1213811 + ... + 1213826.

Almost surely, 2^19421096 is an apocalyptic number.

It is an amenable number.

19421096 is a deficient number, since it is larger than the sum of its proper divisors (16993474).

19421096 is a wasteful number, since it uses less digits than its factorization.

19421096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427643 (or 2427639 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 19421096 is about 4406.9372584597. The cubic root of 19421096 is about 268.7970996593.

The spelling of 19421096 in words is "nineteen million, four hundred twenty-one thousand, ninety-six".