38816455 has 4 divisors (see below), whose sum is σ = 46579752. Its totient is φ = 31053160.

The previous prime is 38816447. The next prime is 38816467. The reversal of 38816455 is 55461883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55461883 = 31 ⋅1789093.

It is not a de Polignac number, because 38816455 - 2³ = 38816447 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3881641 + ... + 3881650.

It is an arithmetic number, because the mean of its divisors is an integer number (11644938).

Almost surely, 2^38816455 is an apocalyptic number.

38816455 is a deficient number, since it is larger than the sum of its proper divisors (7763297).

38816455 is an equidigital number, since it uses as much as digits as its factorization.

38816455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7763296.

The product of its digits is 115200, while the sum is 40.

The square root of 38816455 is about 6230.2853064687. The cubic root of 38816455 is about 338.5883076137.

The spelling of 38816455 in words is "thirty-eight million, eight hundred sixteen thousand, four hundred fifty-five".