6424642240 has 56 divisors (see below), whose sum is σ = 15313091040. Its totient is φ = 2567436288.

The previous prime is 6424642163. The next prime is 6424642253. The reversal of 6424642240 is 422464246.

It is a junction number, because it is equal to n+sod(n) for n = 6424642196 and 6424642205.

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, 352389 + ... + 370171.

Almost surely, 2^6424642240 is an apocalyptic number.

It is an amenable number.

6424642240 is an abundant number, since it is smaller than the sum of its proper divisors (8888448800).

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

6424642240 is a wasteful number, since it uses less digits than its factorization.

6424642240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18929 (or 18919 counting only the distinct ones).

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

The square root of 6424642240 is about 80153.8660327747. The cubic root of 6424642240 is about 1859.0153805142.

The spelling of 6424642240 in words is "six billion, four hundred twenty-four million, six hundred forty-two thousand, two hundred forty".