3408347840 has 56 divisors (see below), whose sum is σ = 8169993312. Its totient is φ = 1354291200.

The previous prime is 3408347791. The next prime is 3408347843. The reversal of 3408347840 is 487438043.

It is not an unprimeable number, because it can be changed into a prime (3408347843) by changing a digit.

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, 13052 + ... + 83588.

Almost surely, 2^3408347840 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 3408347840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4084996656).

3408347840 is an abundant number, since it is smaller than the sum of its proper divisors (4761645472).

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

3408347840 is a wasteful number, since it uses less digits than its factorization.

3408347840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70705 (or 70695 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 3408347840 is about 58381.0572018013. The cubic root of 3408347840 is about 1504.9242376404.

The spelling of 3408347840 in words is "three billion, four hundred eight million, three hundred forty-seven thousand, eight hundred forty".