6708407840 has 48 divisors (see below), whose sum is σ = 16276968792. Its totient is φ = 2610837504.

The previous prime is 6708407837. The next prime is 6708407857. The reversal of 6708407840 is 487048076.

It can be written as a sum of positive squares in 4 ways, for example, as 5104245136 + 1604162704 = 71444^2 + 40052^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6708407791 and 6708407800.

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, 560669 + ... + 572508.

Almost surely, 2^6708407840 is an apocalyptic number.

It is an amenable number.

6708407840 is an abundant number, since it is smaller than the sum of its proper divisors (9568560952).

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

6708407840 is a wasteful number, since it uses less digits than its factorization.

6708407840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133229 (or 1133221 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 6708407840 is about 81904.8706732390. The cubic root of 6708407840 is about 1885.9918830035.

The spelling of 6708407840 in words is "six billion, seven hundred eight million, four hundred seven thousand, eight hundred forty".