130439680 has 160 divisors (see below), whose sum is σ = 371226240. Its totient is φ = 43008000.

The previous prime is 130439671. The next prime is 130439681. The reversal of 130439680 is 86934031.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (130439681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519555 + ... + 519805.

It is an arithmetic number, because the mean of its divisors is an integer number (2320164).

Almost surely, 2^130439680 is an apocalyptic number.

130439680 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 130439680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185613120).

130439680 is an abundant number, since it is smaller than the sum of its proper divisors (240786560).

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

130439680 is an equidigital number, since it uses as much as digits as its factorization.

130439680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 130439680 is about 11421.0192189664. The cubic root of 130439680 is about 507.1501694188.

The spelling of 130439680 in words is "one hundred thirty million, four hundred thirty-nine thousand, six hundred eighty".