3981270850 has 24 divisors (see below), whose sum is σ = 7443952128. Its totient is φ = 1584166800.

The previous prime is 3981270833. The next prime is 3981270857. The reversal of 3981270850 is 580721893.

It is a junction number, because it is equal to n+sod(n) for n = 3981270797 and 3981270806.

It is not an unprimeable number, because it can be changed into a prime (3981270857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198894 + ... + 217993.

It is an arithmetic number, because the mean of its divisors is an integer number (310164672).

Almost surely, 2^3981270850 is an apocalyptic number.

3981270850 is a deficient number, since it is larger than the sum of its proper divisors (3462681278).

3981270850 is a wasteful number, since it uses less digits than its factorization.

3981270850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417090 (or 417085 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 3981270850 is about 63097.3125418191. The cubic root of 3981270850 is about 1584.9196189670.

The spelling of 3981270850 in words is "three billion, nine hundred eighty-one million, two hundred seventy thousand, eight hundred fifty".