6243640532 has 12 divisors (see below), whose sum is σ = 10938371136. Its totient is φ = 3118391640.

The previous prime is 6243640511. The next prime is 6243640537. The reversal of 6243640532 is 2350463426.

It is a junction number, because it is equal to n+sod(n) for n = 6243640492 and 6243640501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6243640537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853058 + ... + 860345.

It is an arithmetic number, because the mean of its divisors is an integer number (911530928).

Almost surely, 2^6243640532 is an apocalyptic number.

It is an amenable number.

6243640532 is a deficient number, since it is larger than the sum of its proper divisors (4694730604).

6243640532 is a wasteful number, since it uses less digits than its factorization.

6243640532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714318 (or 1714316 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 6243640532 is about 79016.7104605096. The cubic root of 6243640532 is about 1841.3907778216.

The spelling of 6243640532 in words is "six billion, two hundred forty-three million, six hundred forty thousand, five hundred thirty-two".