38384881 has 4 divisors (see below), whose sum is σ = 38521764. Its totient is φ = 38248000.

The previous prime is 38384839. The next prime is 38384887. The reversal of 38384881 is 18848383.

It is a happy number.

38384881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18848383 = 1747 ⋅10789.

It can be written as a sum of positive squares in 2 ways, for example, as 18662400 + 19722481 = 4320^2 + 4441^2 .

It is a cyclic number.

It is not a de Polignac number, because 38384881 - 2¹¹ = 38382833 is a prime.

It is a super-2 number, since 2×38384881² = 2946798178768322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38384887) 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 3 ways as a sum of consecutive naturals, for example, 68020 + ... + 68581.

It is an arithmetic number, because the mean of its divisors is an integer number (9630441).

Almost surely, 2^38384881 is an apocalyptic number.

It is an amenable number.

38384881 is a deficient number, since it is larger than the sum of its proper divisors (136883).

38384881 is a wasteful number, since it uses less digits than its factorization.

38384881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136882.

The product of its digits is 147456, while the sum is 43.

The square root of 38384881 is about 6195.5533247645. The cubic root of 38384881 is about 337.3287830221.

It can be divided in two parts, 383 and 84881, that added together give a square (85264 = 292²).

The spelling of 38384881 in words is "thirty-eight million, three hundred eighty-four thousand, eight hundred eighty-one".