3944264387 has 32 divisors (see below), whose sum is σ = 4656018432. Its totient is φ = 3272016384.

The previous prime is 3944264381. The next prime is 3944264413. The reversal of 3944264387 is 7834624493.

3944264387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3944264387 - 2¹⁰ = 3944263363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3944264381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7210448 + ... + 7210994.

It is an arithmetic number, because the mean of its divisors is an integer number (145500576).

Almost surely, 2^3944264387 is an apocalyptic number.

3944264387 is a deficient number, since it is larger than the sum of its proper divisors (711754045).

3944264387 is a wasteful number, since it uses less digits than its factorization.

3944264387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its digits is 3483648, while the sum is 50.

The square root of 3944264387 is about 62803.3787864952. The cubic root of 3944264387 is about 1579.9936424195.

The spelling of 3944264387 in words is "three billion, nine hundred forty-four million, two hundred sixty-four thousand, three hundred eighty-seven".