6432240805 has 8 divisors (see below), whose sum is σ = 7786996632. Its totient is φ = 5100254208.

The previous prime is 6432240781. The next prime is 6432240869. The reversal of 6432240805 is 5080422346.

It can be written as a sum of positive squares in 4 ways, for example, as 275327649 + 6156913156 = 16593^2 + 78466^2 .

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 6432240805 - 2¹³ = 6432232613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5691684 + ... + 5692813.

It is an arithmetic number, because the mean of its divisors is an integer number (973374579).

Almost surely, 2^6432240805 is an apocalyptic number.

It is an amenable number.

6432240805 is a deficient number, since it is larger than the sum of its proper divisors (1354755827).

6432240805 is a wasteful number, since it uses less digits than its factorization.

6432240805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11384615.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 6432240805 is about 80201.2518917255. The cubic root of 6432240805 is about 1859.7479911588.

The spelling of 6432240805 in words is "six billion, four hundred thirty-two million, two hundred forty thousand, eight hundred five".