2130448440 has 32 divisors (see below), whose sum is σ = 6391345680. Its totient is φ = 568119552.

The previous prime is 2130448421. The next prime is 2130448451. The reversal of 2130448440 is 448440312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2130448398 and 2130448407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8876749 + ... + 8876988.

Almost surely, 2^2130448440 is an apocalyptic number.

2130448440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130448440 is an abundant number, since it is smaller than the sum of its proper divisors (4260897240).

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

2130448440 is a wasteful number, since it uses less digits than its factorization.

2130448440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17753751 (or 17753747 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 2130448440 is about 46156.7810836068. The cubic root of 2130448440 is about 1286.7386398152.

Adding to 2130448440 its reverse (448440312), we get a palindrome (2578888752).

The spelling of 2130448440 in words is "two billion, one hundred thirty million, four hundred forty-eight thousand, four hundred forty".