19082840 has 128 divisors (see below), whose sum is σ = 54950400. Its totient is φ = 5806080.

The previous prime is 19082831. The next prime is 19082849. The reversal of 19082840 is 4828091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19082831) and next prime (19082849).

It is a junction number, because it is equal to n+sod(n) for n = 19082797 and 19082806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19082849) 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 31 ways as a sum of consecutive naturals, for example, 90335 + ... + 90545.

It is an arithmetic number, because the mean of its divisors is an integer number (429300).

Almost surely, 2^19082840 is an apocalyptic number.

19082840 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 19082840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27475200).

19082840 is an abundant number, since it is smaller than the sum of its proper divisors (35867560).

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

19082840 is a wasteful number, since it uses less digits than its factorization.

19082840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 19082840 is about 4368.3910081402. The cubic root of 19082840 is about 267.2274103259.

The spelling of 19082840 in words is "nineteen million, eighty-two thousand, eight hundred forty".