130639080 has 256 divisors, whose sum is σ = 481904640. Its totient is φ = 27878400.

The previous prime is 130639063. The next prime is 130639081. The reversal of 130639080 is 80936031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (130639081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394515 + ... + 394845.

It is an arithmetic number, because the mean of its divisors is an integer number (1882440).

Almost surely, 2^130639080 is an apocalyptic number.

130639080 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 130639080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240952320).

130639080 is an abundant number, since it is smaller than the sum of its proper divisors (351265560).

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

130639080 is a wasteful number, since it uses less digits than its factorization.

130639080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 130639080 is about 11429.7454039887. The cubic root of 130639080 is about 507.4084606023.

The spelling of 130639080 in words is "one hundred thirty million, six hundred thirty-nine thousand, eighty".