19428112 has 40 divisors (see below), whose sum is σ = 41372352. Its totient is φ = 8764800.

The previous prime is 19428109. The next prime is 19428121. The reversal of 19428112 is 21182491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29062 + ... + 29722.

Almost surely, 2^19428112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19428112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20686176).

19428112 is an abundant number, since it is smaller than the sum of its proper divisors (21944240).

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

19428112 is a wasteful number, since it uses less digits than its factorization.

19428112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 841 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 19428112 is about 4407.7332042672. The cubic root of 19428112 is about 268.8294640085.

The spelling of 19428112 in words is "nineteen million, four hundred twenty-eight thousand, one hundred twelve".