198282840 has 128 divisors (see below), whose sum is σ = 685186560. Its totient is φ = 44964864.

The previous prime is 198282829. The next prime is 198282869. The reversal of 198282840 is 48282891.

198282840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 198282792 and 198282801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114219 + ... + 115941.

It is an arithmetic number, because the mean of its divisors is an integer number (5353020).

Almost surely, 2^198282840 is an apocalyptic number.

198282840 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 198282840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342593280).

198282840 is an abundant number, since it is smaller than the sum of its proper divisors (486903720).

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

198282840 is a wasteful number, since it uses less digits than its factorization.

198282840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 198282840 is about 14081.2939746317. The cubic root of 198282840 is about 583.1250659687.

The spelling of 198282840 in words is "one hundred ninety-eight million, two hundred eighty-two thousand, eight hundred forty".