38816943 has 16 divisors (see below), whose sum is σ = 59433600. Its totient is φ = 22286880.

The previous prime is 38816927. The next prime is 38816951. The reversal of 38816943 is 34961883.

It is a happy number.

It is not a de Polignac number, because 38816943 - 2⁴ = 38816927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38816895 and 38816904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38816243) 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, 30328 + ... + 31581.

It is an arithmetic number, because the mean of its divisors is an integer number (3714600).

Almost surely, 2^38816943 is an apocalyptic number.

38816943 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

38816943 is a deficient number, since it is larger than the sum of its proper divisors (20616657).

38816943 is a wasteful number, since it uses less digits than its factorization.

38816943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61942.

The product of its digits is 124416, while the sum is 42.

The square root of 38816943 is about 6230.3244698812. The cubic root of 38816943 is about 338.5897265171.

The spelling of 38816943 in words is "thirty-eight million, eight hundred sixteen thousand, nine hundred forty-three".