3944278043 has 4 divisors (see below), whose sum is σ = 3945545760. Its totient is φ = 3943010328.

The previous prime is 3944278003. The next prime is 3944278133. The reversal of 3944278043 is 3408724493.

3944278043 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, and also an emirpimes, since its reverse is a distinct semiprime: 3408724493 = 37 ⋅92127689.

It is a cyclic number.

It is not a de Polignac number, because 3944278043 - 2³⁰ = 2870536219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3944277985 and 3944278003.

It is not an unprimeable number, because it can be changed into a prime (3944278003) 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, 629180 + ... + 635417.

It is an arithmetic number, because the mean of its divisors is an integer number (986386440).

Almost surely, 2^3944278043 is an apocalyptic number.

3944278043 is a deficient number, since it is larger than the sum of its proper divisors (1267717).

3944278043 is a wasteful number, since it uses less digits than its factorization.

3944278043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267716.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 3944278043 is about 62803.4875066664. The cubic root of 3944278043 is about 1579.9954658578.

The spelling of 3944278043 in words is "three billion, nine hundred forty-four million, two hundred seventy-eight thousand, forty-three".