130442844 has 96 divisors (see below), whose sum is σ = 366944256. Its totient is φ = 35259840.

The previous prime is 130442831. The next prime is 130442863. The reversal of 130442844 is 448244031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206409 + ... + 207039.

It is an arithmetic number, because the mean of its divisors is an integer number (3822336).

Almost surely, 2^130442844 is an apocalyptic number.

130442844 is a gapful number since it is divisible by the number (14) 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 130442844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183472128).

130442844 is an abundant number, since it is smaller than the sum of its proper divisors (236501412).

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

130442844 is a wasteful number, since it uses less digits than its factorization.

130442844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 130442844 is about 11421.1577346607. The cubic root of 130442844 is about 507.1542699352.

Adding to 130442844 its reverse (448244031), we get a palindrome (578686875).

The spelling of 130442844 in words is "one hundred thirty million, four hundred forty-two thousand, eight hundred forty-four".