84838885440 has 224 divisors, whose sum is σ = 280254480384. Its totient is φ = 21720545280.

The previous prime is 84838885429. The next prime is 84838885447. The reversal of 84838885440 is 4458883848.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (84838885447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3768297 + ... + 3790743.

Almost surely, 2^84838885440 is an apocalyptic number.

84838885440 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 84838885440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140127240192).

84838885440 is an abundant number, since it is smaller than the sum of its proper divisors (195415594944).

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

84838885440 is a wasteful number, since it uses less digits than its factorization.

84838885440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22625 (or 22615 counting only the distinct ones).

The product of its (nonzero) digits is 31457280, while the sum is 60.

The spelling of 84838885440 in words is "eighty-four billion, eight hundred thirty-eight million, eight hundred eighty-five thousand, four hundred forty".