3781894340 has 24 divisors (see below), whose sum is σ = 9076546752. Its totient is φ = 1296649440.

The previous prime is 3781894331. The next prime is 3781894367. The reversal of 3781894340 is 434981873.

It is an unprimeable number.

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, 13506626 + ... + 13506905.

It is an arithmetic number, because the mean of its divisors is an integer number (378189448).

Almost surely, 2^3781894340 is an apocalyptic number.

It is an amenable number.

3781894340 is an abundant number, since it is smaller than the sum of its proper divisors (5294652412).

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

3781894340 is a wasteful number, since it uses less digits than its factorization.

3781894340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27013547 (or 27013545 counting only the distinct ones).

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

The square root of 3781894340 is about 61497.1083873055. The cubic root of 3781894340 is about 1558.0084079780.

The spelling of 3781894340 in words is "three billion, seven hundred eighty-one million, eight hundred ninety-four thousand, three hundred forty".