3781040816 has 40 divisors (see below), whose sum is σ = 8490242304. Its totient is φ = 1597619520.

The previous prime is 3781040761. The next prime is 3781040827. The reversal of 3781040816 is 6180401873.

It is a self number, because there is not a number n which added to its sum of digits gives 3781040816.

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, 229790 + ... + 245693.

Almost surely, 2^3781040816 is an apocalyptic number.

It is an amenable number.

3781040816 is an abundant number, since it is smaller than the sum of its proper divisors (4709201488).

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

3781040816 is a wasteful number, since it uses less digits than its factorization.

3781040816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475569 (or 475563 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 3781040816 is about 61490.1684499238. The cubic root of 3781040816 is about 1557.8911917983.

The spelling of 3781040816 in words is "three billion, seven hundred eighty-one million, forty thousand, eight hundred sixteen".