198281463040 has 144 divisors (see below), whose sum is σ = 485359475328. Its totient is φ = 77582655488.

The previous prime is 198281462969. The next prime is 198281463047. The reversal of 198281463040 is 40364182891.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198281463047) 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, 23536269 + ... + 23544691.

It is an arithmetic number, because the mean of its divisors is an integer number (3370551912).

Almost surely, 2^198281463040 is an apocalyptic number.

198281463040 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 198281463040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242679737664).

198281463040 is an abundant number, since it is smaller than the sum of its proper divisors (287078012288).

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

198281463040 is an equidigital number, since it uses as much as digits as its factorization.

198281463040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844 (or 8830 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 198281463040 in words is "one hundred ninety-eight billion, two hundred eighty-one million, four hundred sixty-three thousand, forty".