840018306480 has 320 divisors, whose sum is σ = 2663829504000. Its totient is φ = 218934144000.

The previous prime is 840018306443. The next prime is 840018306481. The reversal of 840018306480 is 84603810048.

840018306480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (840018306481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 947032597 + ... + 947033483.

It is an arithmetic number, because the mean of its divisors is an integer number (8324467200).

Almost surely, 2^840018306480 is an apocalyptic number.

840018306480 is a gapful number since it is divisible by the number (80) 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 840018306480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331914752000).

840018306480 is an abundant number, since it is smaller than the sum of its proper divisors (1823811197520).

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

840018306480 is a wasteful number, since it uses less digits than its factorization.

840018306480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 840018306480 in words is "eight hundred forty billion, eighteen million, three hundred six thousand, four hundred eighty".