840048336 has 120 divisors (see below), whose sum is σ = 2575315080. Its totient is φ = 254435328.

The previous prime is 840048299. The next prime is 840048347. The reversal of 840048336 is 633840048.

It can be written as a sum of positive squares in 4 ways, for example, as 453690000 + 386358336 = 21300^2 + 19656^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 840048336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65076 + ... + 76908.

It is an arithmetic number, because the mean of its divisors is an integer number (21460959).

Almost surely, 2^840048336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840048336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287657540).

840048336 is an abundant number, since it is smaller than the sum of its proper divisors (1735266744).

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

840048336 is a wasteful number, since it uses less digits than its factorization.

840048336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893 (or 11884 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 840048336 is about 28983.5873556052. The cubic root of 840048336 is about 943.5568936889.

The spelling of 840048336 in words is "eight hundred forty million, forty-eight thousand, three hundred thirty-six".