130444320 has 96 divisors (see below), whose sum is σ = 425113920. Its totient is φ = 33582080.

The previous prime is 130444283. The next prime is 130444331. The reversal of 130444320 is 23444031.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9235 + ... + 18605.

It is an arithmetic number, because the mean of its divisors is an integer number (4428270).

Almost surely, 2^130444320 is an apocalyptic number.

130444320 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 130444320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212556960).

130444320 is an abundant number, since it is smaller than the sum of its proper divisors (294669600).

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

130444320 is a wasteful number, since it uses less digits than its factorization.

130444320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9418 (or 9410 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 130444320 is about 11421.2223513948. Note that the first 3 decimals coincide. The cubic root of 130444320 is about 507.1561827957.

Adding to 130444320 its reverse (23444031), we get a palindrome (153888351).

The spelling of 130444320 in words is "one hundred thirty million, four hundred forty-four thousand, three hundred twenty".