3944506043 has 4 divisors (see below), whose sum is σ = 3944904480. Its totient is φ = 3944107608.

The previous prime is 3944506037. The next prime is 3944506063. The reversal of 3944506043 is 3406054493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3406054493 = 347 ⋅9815719.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3944506043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3944505988 and 3944506006.

It is not an unprimeable number, because it can be changed into a prime (3944506063) 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, 183980 + ... + 204297.

It is an arithmetic number, because the mean of its divisors is an integer number (986226120).

Almost surely, 2^3944506043 is an apocalyptic number.

3944506043 is a deficient number, since it is larger than the sum of its proper divisors (398437).

3944506043 is a wasteful number, since it uses less digits than its factorization.

3944506043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398436.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 3944506043 is about 62805.3026662558. The cubic root of 3944506043 is about 1580.0259092851.

The spelling of 3944506043 in words is "three billion, nine hundred forty-four million, five hundred six thousand, forty-three".