19478612 has 12 divisors (see below), whose sum is σ = 34156416. Its totient is φ = 9719640.

The previous prime is 19478611. The next prime is 19478623. The reversal of 19478612 is 21687491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19478611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2564 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (2846368).

Almost surely, 2^19478612 is an apocalyptic number.

It is an amenable number.

19478612 is a deficient number, since it is larger than the sum of its proper divisors (14677804).

19478612 is a wasteful number, since it uses less digits than its factorization.

19478612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9838 (or 9836 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 19478612 is about 4413.4580546324. The cubic root of 19478612 is about 269.0621876372.

The spelling of 19478612 in words is "nineteen million, four hundred seventy-eight thousand, six hundred twelve".