38943943 has 6 divisors (see below), whose sum is σ = 40026336. Its totient is φ = 37890072.

The previous prime is 38943941. The next prime is 38943959. The reversal of 38943943 is 34934983.

38943943 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 38943943 - 2¹ = 38943941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38943943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38943941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12855 + ... + 15592.

It is an arithmetic number, because the mean of its divisors is an integer number (6671056).

Almost surely, 2^38943943 is an apocalyptic number.

38943943 is a deficient number, since it is larger than the sum of its proper divisors (1082393).

38943943 is an equidigital number, since it uses as much as digits as its factorization.

38943943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28521 (or 28484 counting only the distinct ones).

The product of its digits is 279936, while the sum is 43.

The square root of 38943943 is about 6240.5082325080. The cubic root of 38943943 is about 338.9585867853.

The spelling of 38943943 in words is "thirty-eight million, nine hundred forty-three thousand, nine hundred forty-three".