6143365440 has 84 divisors (see below), whose sum is σ = 21130627284. Its totient is φ = 1638230016.

The previous prime is 6143365439. The next prime is 6143365451. The reversal of 6143365440 is 445633416.

6143365440 is a `hidden beast` number, since 614 + 3 + 36 + 5 + 4 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4381380864 + 1761984576 = 66192^2 + 41976^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6143365395 and 6143365404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063677 + ... + 1069436.

Almost surely, 2^6143365440 is an apocalyptic number.

6143365440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6143365440 is an abundant number, since it is smaller than the sum of its proper divisors (14987261844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6143365440 is a wasteful number, since it uses less digits than its factorization.

6143365440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133136 (or 2133123 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 6143365440 is about 78379.6238827414. The cubic root of 6143365440 is about 1831.4797312382.

Adding to 6143365440 its reverse (445633416), we get a palindrome (6588998856).

The spelling of 6143365440 in words is "six billion, one hundred forty-three million, three hundred sixty-five thousand, four hundred forty".