130002444 has 72 divisors (see below), whose sum is σ = 386083152. Its totient is φ = 36362880.

The previous prime is 130002421. The next prime is 130002449. The reversal of 130002444 is 444200031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130002449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7479 + ... + 17774.

It is an arithmetic number, because the mean of its divisors is an integer number (5362266).

Almost surely, 2^130002444 is an apocalyptic number.

It is an amenable number.

130002444 is an abundant number, since it is smaller than the sum of its proper divisors (256080708).

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

130002444 is a wasteful number, since it uses less digits than its factorization.

130002444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25287 (or 25282 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 130002444 is about 11401.8614269776. The cubic root of 130002444 is about 506.5828764563.

Adding to 130002444 its reverse (444200031), we get a palindrome (574202475).

The spelling of 130002444 in words is "one hundred thirty million, two thousand, four hundred forty-four".