3881768340 has 48 divisors (see below), whose sum is σ = 10871659008. Its totient is φ = 1034880384.

The previous prime is 3881768333. The next prime is 3881768353. The reversal of 3881768340 is 438671883.

It is a self number, because there is not a number n which added to its sum of digits gives 3881768340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450109 + ... + 458651.

It is an arithmetic number, because the mean of its divisors is an integer number (226492896).

Almost surely, 2^3881768340 is an apocalyptic number.

3881768340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3881768340 is an abundant number, since it is smaller than the sum of its proper divisors (6989890668).

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

3881768340 is a wasteful number, since it uses less digits than its factorization.

3881768340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128 (or 16126 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 3881768340 is about 62303.8388865405. The cubic root of 3881768340 is about 1571.6042859867.

The spelling of 3881768340 in words is "three billion, eight hundred eighty-one million, seven hundred sixty-eight thousand, three hundred forty".