3940253771 has 4 divisors (see below), whose sum is σ = 3987726792. Its totient is φ = 3892780752.

The previous prime is 3940253749. The next prime is 3940253777. The reversal of 3940253771 is 1773520493.

3940253771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3940253771 - 2²² = 3936059467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3940253777) 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, 23736386 + ... + 23736551.

It is an arithmetic number, because the mean of its divisors is an integer number (996931698).

Almost surely, 2^3940253771 is an apocalyptic number.

3940253771 is a deficient number, since it is larger than the sum of its proper divisors (47473021).

3940253771 is an equidigital number, since it uses as much as digits as its factorization.

3940253771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47473020.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 3940253771 is about 62771.4407274518. The cubic root of 3940253771 is about 1579.4579365475.

The spelling of 3940253771 in words is "three billion, nine hundred forty million, two hundred fifty-three thousand, seven hundred seventy-one".