3865213328 has 20 divisors (see below), whose sum is σ = 7492608240. Its totient is φ = 1931637024.

The previous prime is 3865213243. The next prime is 3865213337. The reversal of 3865213328 is 8233125683.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27158 + ... + 92021.

It is an arithmetic number, because the mean of its divisors is an integer number (374630412).

Almost surely, 2^3865213328 is an apocalyptic number.

It is an amenable number.

3865213328 is a deficient number, since it is larger than the sum of its proper divisors (3627394912).

3865213328 is a wasteful number, since it uses less digits than its factorization.

3865213328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121214 (or 121208 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 3865213328 is about 62170.8398527799. The cubic root of 3865213328 is about 1569.3669033811.

The spelling of 3865213328 in words is "three billion, eight hundred sixty-five million, two hundred thirteen thousand, three hundred twenty-eight".