4251543442 has 8 divisors (see below), whose sum is σ = 6380842032. Its totient is φ = 2124596100.

The previous prime is 4251543409. The next prime is 4251543449. The reversal of 4251543442 is 2443451524.

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

It is a junction number, because it is equal to n+sod(n) for n = 4251543398 and 4251543407.

It is not an unprimeable number, because it can be changed into a prime (4251543449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583284 + ... + 590527.

It is an arithmetic number, because the mean of its divisors is an integer number (797605254).

Almost surely, 2^4251543442 is an apocalyptic number.

4251543442 is a deficient number, since it is larger than the sum of its proper divisors (2129298590).

4251543442 is a wasteful number, since it uses less digits than its factorization.

4251543442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175624.

The product of its digits is 76800, while the sum is 34.

The square root of 4251543442 is about 65203.8606372353. The cubic root of 4251543442 is about 1620.0019613348.

Adding to 4251543442 its reverse (2443451524), we get a palindrome (6694994966).

The spelling of 4251543442 in words is "four billion, two hundred fifty-one million, five hundred forty-three thousand, four hundred forty-two".