4140043252 has 24 divisors (see below), whose sum is σ = 7705079424. Its totient is φ = 1939665792.

The previous prime is 4140043213. The next prime is 4140043253. The reversal of 4140043252 is 2523400414.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140043253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 118668 + ... + 149539.

It is an arithmetic number, because the mean of its divisors is an integer number (321044976).

Almost surely, 2^4140043252 is an apocalyptic number.

It is an amenable number.

4140043252 is a deficient number, since it is larger than the sum of its proper divisors (3565036172).

4140043252 is a wasteful number, since it uses less digits than its factorization.

4140043252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268455 (or 268453 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4140043252 is about 64343.1678735202. The cubic root of 4140043252 is about 1605.7143654085.

Adding to 4140043252 its reverse (2523400414), we get a palindrome (6663443666).

The spelling of 4140043252 in words is "four billion, one hundred forty million, forty-three thousand, two hundred fifty-two".