38190385 has 4 divisors (see below), whose sum is σ = 45828468. Its totient is φ = 30552304.

The previous prime is 38190377. The next prime is 38190409. The reversal of 38190385 is 58309183.

38190385 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 7187761 + 31002624 = 2681^2 + 5568^2 .

It is a cyclic number.

It is not a de Polignac number, because 38190385 - 2³ = 38190377 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, 3819034 + ... + 3819043.

It is an arithmetic number, because the mean of its divisors is an integer number (11457117).

Almost surely, 2^38190385 is an apocalyptic number.

It is an amenable number.

38190385 is a deficient number, since it is larger than the sum of its proper divisors (7638083).

38190385 is an equidigital number, since it uses as much as digits as its factorization.

38190385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638082.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 38190385 is about 6179.8369719597. The cubic root of 38190385 is about 336.7580702490.

The spelling of 38190385 in words is "thirty-eight million, one hundred ninety thousand, three hundred eighty-five".