38013385 has 4 divisors (see below), whose sum is σ = 45616068. Its totient is φ = 30410704.

The previous prime is 38013383. The next prime is 38013389. The reversal of 38013385 is 58331083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58331083 = 19 ⋅3070057.

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 12369289 = 5064^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 38013385 - 2¹ = 38013383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38013383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801334 + ... + 3801343.

It is an arithmetic number, because the mean of its divisors is an integer number (11404017).

Almost surely, 2^38013385 is an apocalyptic number.

It is an amenable number.

38013385 is a deficient number, since it is larger than the sum of its proper divisors (7602683).

38013385 is an equidigital number, since it uses as much as digits as its factorization.

38013385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602682.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 38013385 is about 6165.4995742438. The cubic root of 38013385 is about 336.2370097661.

The spelling of 38013385 in words is "thirty-eight million, thirteen thousand, three hundred eighty-five".