4252143421 has 8 divisors (see below), whose sum is σ = 4276224000. Its totient is φ = 4228082160.

The previous prime is 4252143419. The next prime is 4252143431. The reversal of 4252143421 is 1243412524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4252143421 - 2¹ = 4252143419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4252143421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4252143431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828100 + ... + 833218.

It is an arithmetic number, because the mean of its divisors is an integer number (534528000).

Almost surely, 2^4252143421 is an apocalyptic number.

It is an amenable number.

4252143421 is a deficient number, since it is larger than the sum of its proper divisors (24080579).

4252143421 is a wasteful number, since it uses less digits than its factorization.

4252143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9659.

The product of its digits is 7680, while the sum is 28.

The square root of 4252143421 is about 65208.4612684581. The cubic root of 4252143421 is about 1620.0781627937.

Adding to 4252143421 its reverse (1243412524), we get a palindrome (5495555945).

The spelling of 4252143421 in words is "four billion, two hundred fifty-two million, one hundred forty-three thousand, four hundred twenty-one".