130140444 has 48 divisors (see below), whose sum is σ = 351945216. Its totient is φ = 36657600.

The previous prime is 130140421. The next prime is 130140469. The reversal of 130140444 is 444041031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 130140444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4947 + ... + 16874.

It is an arithmetic number, because the mean of its divisors is an integer number (7332192).

Almost surely, 2^130140444 is an apocalyptic number.

130140444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130140444 is an abundant number, since it is smaller than the sum of its proper divisors (221804772).

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

130140444 is a wasteful number, since it uses less digits than its factorization.

130140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21906 (or 21904 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 130140444 is about 11407.9114652946. The cubic root of 130140444 is about 506.7620621009.

Adding to 130140444 its reverse (444041031), we get a palindrome (574181475).

The spelling of 130140444 in words is "one hundred thirty million, one hundred forty thousand, four hundred forty-four".