4140421243 has 16 divisors (see below), whose sum is σ = 4886922240. Its totient is φ = 3434371776.

The previous prime is 4140421237. The next prime is 4140421273. The reversal of 4140421243 is 3421240414.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4140421243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4140421223) 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 15 ways as a sum of consecutive naturals, for example, 41421 + ... + 99982.

It is an arithmetic number, because the mean of its divisors is an integer number (305432640).

Almost surely, 2^4140421243 is an apocalyptic number.

4140421243 is a deficient number, since it is larger than the sum of its proper divisors (746500997).

4140421243 is a wasteful number, since it uses less digits than its factorization.

4140421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141546.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4140421243 is about 64346.1051113430. The cubic root of 4140421243 is about 1605.7632318149.

Adding to 4140421243 its reverse (3421240414), we get a palindrome (7561661657).

The spelling of 4140421243 in words is "four billion, one hundred forty million, four hundred twenty-one thousand, two hundred forty-three".