6247280240 has 80 divisors (see below), whose sum is σ = 15327144000. Its totient is φ = 2363344896.

The previous prime is 6247280233. The next prime is 6247280243. The reversal of 6247280240 is 420827426.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 6247280240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6247280243) 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 15 ways as a sum of consecutive naturals, for example, 144686 + ... + 182834.

It is an arithmetic number, because the mean of its divisors is an integer number (191589300).

Almost surely, 2^6247280240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6247280240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7663572000).

6247280240 is an abundant number, since it is smaller than the sum of its proper divisors (9079863760).

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

6247280240 is a wasteful number, since it uses less digits than its factorization.

6247280240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38274 (or 38268 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 6247280240 is about 79039.7383598908. The cubic root of 6247280240 is about 1841.7485190468.

The spelling of 6247280240 in words is "six billion, two hundred forty-seven million, two hundred eighty thousand, two hundred forty".