840386013100 has 54 divisors (see below), whose sum is σ = 1832570858132. Its totient is φ = 334508244000.

The previous prime is 840386013053. The next prime is 840386013119. The reversal of 840386013100 is 1310683048.

It is a super-2 number, since 2×840386013100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 133158945 + ... + 133165255.

Almost surely, 2^840386013100 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 840386013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916285429066).

840386013100 is an abundant number, since it is smaller than the sum of its proper divisors (992184845032).

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

840386013100 is an equidigital number, since it uses as much as digits as its factorization.

840386013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12847 (or 6529 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

Adding to 840386013100 its reverse (1310683048), we get a palindrome (841696696148).

The spelling of 840386013100 in words is "eight hundred forty billion, three hundred eighty-six million, thirteen thousand, one hundred".