3881306738 has 16 divisors (see below), whose sum is σ = 6277854240. Its totient is φ = 1793671200.

The previous prime is 3881306701. The next prime is 3881306747. The reversal of 3881306738 is 8376031883.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3881306692 and 3881306701.

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, 1244048 + ... + 1247163.

It is an arithmetic number, because the mean of its divisors is an integer number (392365890).

Almost surely, 2^3881306738 is an apocalyptic number.

3881306738 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3881306738 is a deficient number, since it is larger than the sum of its proper divisors (2396547502).

3881306738 is a wasteful number, since it uses less digits than its factorization.

3881306738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491273.

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

The square root of 3881306738 is about 62300.1343337236. The cubic root of 3881306738 is about 1571.5419875379.

The spelling of 3881306738 in words is "three billion, eight hundred eighty-one million, three hundred six thousand, seven hundred thirty-eight".