130244420 has 48 divisors (see below), whose sum is σ = 281413440. Its totient is φ = 50606976.

The previous prime is 130244371. The next prime is 130244431. The reversal of 130244420 is 24442031.

It is a super-2 number, since 2×130244420² = 33927217882272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 130244392 and 130244401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231059 + ... + 231621.

It is an arithmetic number, because the mean of its divisors is an integer number (5862780).

Almost surely, 2^130244420 is an apocalyptic number.

130244420 is a gapful number since it is divisible by the number (10) 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 130244420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140706720).

130244420 is an abundant number, since it is smaller than the sum of its proper divisors (151169020).

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

130244420 is a wasteful number, since it uses less digits than its factorization.

130244420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 882 counting only the distinct ones).

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

The square root of 130244420 is about 11412.4677436565. The cubic root of 130244420 is about 506.8969857373.

Adding to 130244420 its reverse (24442031), we get a palindrome (154686451).

The spelling of 130244420 in words is "one hundred thirty million, two hundred forty-four thousand, four hundred twenty".