3820865814 has 24 divisors (see below), whose sum is σ = 8280480312. Its totient is φ = 1273323840.

The previous prime is 3820865729. The next prime is 3820865827. The reversal of 3820865814 is 4185680283.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3820865814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62497 + ... + 107459.

It is an arithmetic number, because the mean of its divisors is an integer number (345020013).

Almost surely, 2^3820865814 is an apocalyptic number.

3820865814 is an abundant number, since it is smaller than the sum of its proper divisors (4459614498).

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

3820865814 is a wasteful number, since it uses less digits than its factorization.

3820865814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49692 (or 49689 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 3820865814 is about 61813.1524353838. The cubic root of 3820865814 is about 1563.3417589129.

The spelling of 3820865814 in words is "three billion, eight hundred twenty million, eight hundred sixty-five thousand, eight hundred fourteen".