130040856 has 128 divisors (see below), whose sum is σ = 397440000. Its totient is φ = 39070080.

The previous prime is 130040839. The next prime is 130040857. The reversal of 130040856 is 658040031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130040857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543985 + ... + 544223.

It is an arithmetic number, because the mean of its divisors is an integer number (3105000).

Almost surely, 2^130040856 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 130040856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198720000).

130040856 is an abundant number, since it is smaller than the sum of its proper divisors (267399144).

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

130040856 is a wasteful number, since it uses less digits than its factorization.

130040856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 130040856 is about 11403.5457643664. The cubic root of 130040856 is about 506.6327651216.

Adding to 130040856 its reverse (658040031), we get a palindrome (788080887).

The spelling of 130040856 in words is "one hundred thirty million, forty thousand, eight hundred fifty-six".