3849781340 has 24 divisors (see below), whose sum is σ = 8090828592. Its totient is φ = 1538714880.

The previous prime is 3849781321. The next prime is 3849781367. The reversal of 3849781340 is 431879483.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 48266 + ... + 100145.

It is an arithmetic number, because the mean of its divisors is an integer number (337117858).

Almost surely, 2^3849781340 is an apocalyptic number.

It is an amenable number.

3849781340 is an abundant number, since it is smaller than the sum of its proper divisors (4241047252).

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

3849781340 is a wasteful number, since it uses less digits than its factorization.

3849781340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149717 (or 149715 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 3849781340 is about 62046.6061924421. The cubic root of 3849781340 is about 1567.2755350809.

The spelling of 3849781340 in words is "three billion, eight hundred forty-nine million, seven hundred eighty-one thousand, three hundred forty".