38443385 has 4 divisors (see below), whose sum is σ = 46132068. Its totient is φ = 30754704.

The previous prime is 38443367. The next prime is 38443399. The reversal of 38443385 is 58334483.

38443385 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: 58334483 = 61 ⋅956303.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 9369721 = 5392^2 + 3061^2 .

It is a cyclic number.

It is not a de Polignac number, because 38443385 - 2²² = 34249081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 3844334 + ... + 3844343.

It is an arithmetic number, because the mean of its divisors is an integer number (11533017).

Almost surely, 2^38443385 is an apocalyptic number.

It is an amenable number.

38443385 is a deficient number, since it is larger than the sum of its proper divisors (7688683).

38443385 is an equidigital number, since it uses as much as digits as its factorization.

38443385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7688682.

The product of its digits is 138240, while the sum is 38.

The square root of 38443385 is about 6200.2729778615. The cubic root of 38443385 is about 337.5000749886.

The spelling of 38443385 in words is "thirty-eight million, four hundred forty-three thousand, three hundred eighty-five".