19385982 has 96 divisors (see below), whose sum is σ = 53374464. Its totient is φ = 4939200.

The previous prime is 19385963. The next prime is 19385999. The reversal of 19385982 is 28958391.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98308 + ... + 98504.

It is an arithmetic number, because the mean of its divisors is an integer number (555984).

Almost surely, 2^19385982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19385982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26687232).

19385982 is an abundant number, since it is smaller than the sum of its proper divisors (33988482).

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

19385982 is a wasteful number, since it uses less digits than its factorization.

19385982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 291 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 19385982 is about 4402.9515100669. The cubic root of 19385982 is about 268.6350038387.

The spelling of 19385982 in words is "nineteen million, three hundred eighty-five thousand, nine hundred eighty-two".