130220444 has 12 divisors (see below), whose sum is σ = 227976000. Its totient is φ = 65084448.

The previous prime is 130220423. The next prime is 130220449. The reversal of 130220444 is 444022031.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130220449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9077 + ... + 18515.

It is an arithmetic number, because the mean of its divisors is an integer number (18998000).

Almost surely, 2^130220444 is an apocalyptic number.

It is an amenable number.

130220444 is a deficient number, since it is larger than the sum of its proper divisors (97755556).

130220444 is a wasteful number, since it uses less digits than its factorization.

130220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12892 (or 12890 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 130220444 is about 11411.4172651779. The cubic root of 130220444 is about 506.8658798418.

Adding to 130220444 its reverse (444022031), we get a palindrome (574242475).

The spelling of 130220444 in words is "one hundred thirty million, two hundred twenty thousand, four hundred forty-four".