2142251430 has 128 divisors (see below), whose sum is σ = 6021236736. Its totient is φ = 481996800.

The previous prime is 2142251407. The next prime is 2142251483. The reversal of 2142251430 is 341522412.

It is a self number, because there is not a number n which added to its sum of digits gives 2142251430.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 406915 + ... + 412145.

It is an arithmetic number, because the mean of its divisors is an integer number (47040912).

Almost surely, 2^2142251430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142251430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3010618368).

2142251430 is an abundant number, since it is smaller than the sum of its proper divisors (3878985306).

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

2142251430 is a wasteful number, since it uses less digits than its factorization.

2142251430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2142251430 is about 46284.4620796224. The cubic root of 2142251430 is about 1289.1105039255.

Adding to 2142251430 its reverse (341522412), we get a palindrome (2483773842).

The spelling of 2142251430 in words is "two billion, one hundred forty-two million, two hundred fifty-one thousand, four hundred thirty".