840830019120 has 1920 divisors, whose sum is σ = 3878535757824. Its totient is φ = 164253007872.

The previous prime is 840830019109. The next prime is 840830019121. The reversal of 840830019120 is 21910038048.

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

It is not an unprimeable number, because it can be changed into a prime (840830019121) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 2195378449 + ... + 2195378831.

Almost surely, 2^840830019120 is an apocalyptic number.

840830019120 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 840830019120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1939267878912).

840830019120 is an abundant number, since it is smaller than the sum of its proper divisors (3037705738704).

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

840830019120 is a wasteful number, since it uses less digits than its factorization.

840830019120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 840830019120 in words is "eight hundred forty billion, eight hundred thirty million, nineteen thousand, one hundred twenty".