130243444 has 24 divisors (see below), whose sum is σ = 235277280. Its totient is φ = 63054816.

The previous prime is 130243427. The next prime is 130243447. The reversal of 130243444 is 444342031.

It is a super-2 number, since 2×130243444² = 33926709409962272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130243447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11694 + ... + 19930.

It is an arithmetic number, because the mean of its divisors is an integer number (9803220).

Almost surely, 2^130243444 is an apocalyptic number.

It is an amenable number.

130243444 is a deficient number, since it is larger than the sum of its proper divisors (105033836).

130243444 is a wasteful number, since it uses less digits than its factorization.

130243444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367 (or 8365 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 130243444 is about 11412.4249833241. The cubic root of 130243444 is about 506.8957195725.

Adding to 130243444 its reverse (444342031), we get a palindrome (574585475).

It can be divided in two parts, 13024 and 3444, that multiplied together give a triangular number (44854656 = T₉₄₇₁).

The spelling of 130243444 in words is "one hundred thirty million, two hundred forty-three thousand, four hundred forty-four".