6239543040 has 216 divisors, whose sum is σ = 22527741600. Its totient is φ = 1591468032.

The previous prime is 6239542919. The next prime is 6239543047. The reversal of 6239543040 is 403459326.

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 = 6239542986 and 6239543004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6239543047) 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 23 ways as a sum of consecutive naturals, for example, 253186 + ... + 276734.

It is an arithmetic number, because the mean of its divisors is an integer number (104295100).

Almost surely, 2^6239543040 is an apocalyptic number.

6239543040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6239543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11263870800).

6239543040 is an abundant number, since it is smaller than the sum of its proper divisors (16288198560).

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

6239543040 is a wasteful number, since it uses less digits than its factorization.

6239543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23599 (or 23582 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 6239543040 is about 78990.7781959388. The cubic root of 6239543040 is about 1840.9878753230.

The spelling of 6239543040 in words is "six billion, two hundred thirty-nine million, five hundred forty-three thousand, forty".