19894672 has 40 divisors (see below), whose sum is σ = 46376000. Its totient is φ = 8076672.

The previous prime is 19894669. The next prime is 19894673. The reversal of 19894672 is 27649891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19894673) 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 in 7 ways as a sum of consecutive naturals, for example, 2547 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (1159400).

Almost surely, 2^19894672 is an apocalyptic number.

It is an amenable number.

19894672 is an abundant number, since it is smaller than the sum of its proper divisors (26481328).

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

19894672 is a wasteful number, since it uses less digits than its factorization.

19894672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9383 (or 9377 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 19894672 is about 4460.3443813230. The cubic root of 19894672 is about 270.9644157468.

The spelling of 19894672 in words is "nineteen million, eight hundred ninety-four thousand, six hundred seventy-two".