2130423444 has 120 divisors (see below), whose sum is σ = 5802749568. Its totient is φ = 680944320.

The previous prime is 2130423439. The next prime is 2130423467. The reversal of 2130423444 is 4443240312.

It is a happy number.

2130423444 is a `hidden beast` number, since 213 + 0 + 4 + 2 + 3 + 444 = 666.

It is a super-3 number, since 3×2130423444³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 849897 + ... + 852399.

Almost surely, 2^2130423444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130423444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2901374784).

2130423444 is an abundant number, since it is smaller than the sum of its proper divisors (3672326124).

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

2130423444 is a wasteful number, since it uses less digits than its factorization.

2130423444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2130423444 is about 46156.5103100310. The cubic root of 2130423444 is about 1286.7336074717.

Adding to 2130423444 its reverse (4443240312), we get a palindrome (6573663756).

The spelling of 2130423444 in words is "two billion, one hundred thirty million, four hundred twenty-three thousand, four hundred forty-four".