19482840 has 192 divisors, whose sum is σ = 71547840. Its totient is φ = 4561920.

The previous prime is 19482829. The next prime is 19482857. The reversal of 19482840 is 4828491.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 19482795 and 19482804.

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, 107550 + ... + 107730.

It is an arithmetic number, because the mean of its divisors is an integer number (372645).

Almost surely, 2^19482840 is an apocalyptic number.

19482840 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 19482840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35773920).

19482840 is an abundant number, since it is smaller than the sum of its proper divisors (52065000).

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

19482840 is a wasteful number, since it uses less digits than its factorization.

19482840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 19482840 is about 4413.9370181279. The cubic root of 19482840 is about 269.0816536483.

The spelling of 19482840 in words is "nineteen million, four hundred eighty-two thousand, eight hundred forty".