3940819814 has 8 divisors (see below), whose sum is σ = 5956354008. Its totient is φ = 1955368480.

The previous prime is 3940819801. The next prime is 3940819819. The reversal of 3940819814 is 4189180493.

3940819814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940819819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7520387 + ... + 7520910.

It is an arithmetic number, because the mean of its divisors is an integer number (744544251).

Almost surely, 2^3940819814 is an apocalyptic number.

3940819814 is a deficient number, since it is larger than the sum of its proper divisors (2015534194).

3940819814 is a wasteful number, since it uses less digits than its factorization.

3940819814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15041430.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 3940819814 is about 62775.9493277481. The cubic root of 3940819814 is about 1579.5335660503.

The spelling of 3940819814 in words is "three billion, nine hundred forty million, eight hundred nineteen thousand, eight hundred fourteen".