130132440 has 128 divisors (see below), whose sum is σ = 438436800. Its totient is φ = 34329600.

The previous prime is 130132439. The next prime is 130132447. The reversal of 130132440 is 44231031.

130132440 is a `hidden beast` number, since 1 + 301 + 324 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130132447) 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, 108484 + ... + 109676.

Almost surely, 2^130132440 is an apocalyptic number.

130132440 is a gapful number since it is divisible by the number (10) 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 130132440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219218400).

130132440 is an abundant number, since it is smaller than the sum of its proper divisors (308304360).

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

130132440 is a wasteful number, since it uses less digits than its factorization.

130132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130132440 is about 11407.5606507263. The cubic root of 130132440 is about 506.7516727948.

Adding to 130132440 its reverse (44231031), we get a palindrome (174363471).

The spelling of 130132440 in words is "one hundred thirty million, one hundred thirty-two thousand, four hundred forty".