6242644240 has 40 divisors (see below), whose sum is σ = 16587599040. Its totient is φ = 2140334976.

The previous prime is 6242644087. The next prime is 6242644283. The reversal of 6242644240 is 424462426.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 6242644196 and 6242644205.

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 7 ways as a sum of consecutive naturals, for example, 5573230 + ... + 5574349.

It is an arithmetic number, because the mean of its divisors is an integer number (414689976).

Almost surely, 2^6242644240 is an apocalyptic number.

It is an amenable number.

6242644240 is an abundant number, since it is smaller than the sum of its proper divisors (10344954800).

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

6242644240 is a wasteful number, since it uses less digits than its factorization.

6242644240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147599 (or 11147593 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 6242644240 is about 79010.4058969450. The cubic root of 6242644240 is about 1841.2928295984.

The spelling of 6242644240 in words is "six billion, two hundred forty-two million, six hundred forty-four thousand, two hundred forty".