130444380 has 72 divisors (see below), whose sum is σ = 431658864. Its totient is φ = 31622400.

The previous prime is 130444361. The next prime is 130444381. The reversal of 130444380 is 83444031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130444381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30961 + ... + 34920.

It is an arithmetic number, because the mean of its divisors is an integer number (5995262).

Almost surely, 2^130444380 is an apocalyptic number.

130444380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130444380 is an abundant number, since it is smaller than the sum of its proper divisors (301214484).

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

130444380 is a wasteful number, since it uses less digits than its factorization.

130444380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65907 (or 65902 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 130444380 is about 11421.2249780836. The cubic root of 130444380 is about 507.1562605539.

It can be divided in two parts, 13044 and 4380, that added together give a square (17424 = 132²).

The spelling of 130444380 in words is "one hundred thirty million, four hundred forty-four thousand, three hundred eighty".