38947443 has 16 divisors (see below), whose sum is σ = 53277696. Its totient is φ = 25296320.

The previous prime is 38947429. The next prime is 38947451. The reversal of 38947443 is 34474983.

It is a cyclic number.

It is not a de Polignac number, because 38947443 - 2⁵ = 38947411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38947395 and 38947404.

It is not an unprimeable number, because it can be changed into a prime (38947423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39130 + ... + 40112.

It is an arithmetic number, because the mean of its divisors is an integer number (3329856).

Almost surely, 2^38947443 is an apocalyptic number.

38947443 is a deficient number, since it is larger than the sum of its proper divisors (14330253).

38947443 is a wasteful number, since it uses less digits than its factorization.

38947443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its digits is 290304, while the sum is 42.

The square root of 38947443 is about 6240.7886520856. The cubic root of 38947443 is about 338.9687408634.

The spelling of 38947443 in words is "thirty-eight million, nine hundred forty-seven thousand, four hundred forty-three".