38430193 has 4 divisors (see below), whose sum is σ = 38956708. Its totient is φ = 37903680.

The previous prime is 38430187. The next prime is 38430211. The reversal of 38430193 is 39103483.

38430193 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.

It can be written as a sum of positive squares in 2 ways, for example, as 24532209 + 13897984 = 4953^2 + 3728^2 .

It is a cyclic number.

It is not a de Polignac number, because 38430193 - 2²¹ = 36333041 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (38430163) 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, 263148 + ... + 263293.

It is an arithmetic number, because the mean of its divisors is an integer number (9739177).

Almost surely, 2^38430193 is an apocalyptic number.

It is an amenable number.

38430193 is a deficient number, since it is larger than the sum of its proper divisors (526515).

38430193 is an equidigital number, since it uses as much as digits as its factorization.

38430193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526514.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 38430193 is about 6199.2090624530. The cubic root of 38430193 is about 337.4614657422.

The spelling of 38430193 in words is "thirty-eight million, four hundred thirty thousand, one hundred ninety-three".