19883040 has 96 divisors (see below), whose sum is σ = 65390976. Its totient is φ = 5068800.

The previous prime is 19883033. The next prime is 19883041. The reversal of 19883040 is 4038891.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19882992 and 19883010.

It is not an unprimeable number, because it can be changed into a prime (19883041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10140 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (681156).

Almost surely, 2^19883040 is an apocalyptic number.

19883040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19883040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32695488).

19883040 is an abundant number, since it is smaller than the sum of its proper divisors (45507936).

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

19883040 is a wasteful number, since it uses less digits than its factorization.

19883040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 19883040 is about 4459.0402554810. The cubic root of 19883040 is about 270.9115963696.

It can be divided in two parts, 198 and 83040, that added together give a palindrome (83238).

The spelling of 19883040 in words is "nineteen million, eight hundred eighty-three thousand, forty".