190385 has 16 divisors (see below), whose sum is σ = 257040. Its totient is φ = 134400.

The previous prime is 190369. The next prime is 190387. The reversal of 190385 is 583091.

It can be written as a sum of positive squares in 8 ways, for example, as 289 + 190096 = 17^2 + 436^2 .

It is not a de Polignac number, because 190385 - 2⁴ = 190369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1835 + ... + 1935.

It is an arithmetic number, because the mean of its divisors is an integer number (16065).

2¹⁹⁰³⁸⁵ is an apocalyptic number.

It is an amenable number.

190385 is a deficient number, since it is larger than the sum of its proper divisors (66655).

190385 is a wasteful number, since it uses less digits than its factorization.

190385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 190385 is about 436.3312961501. The cubic root of 190385 is about 57.5277748612.

It can be divided in two parts, 190 and 385, that added together give a palindrome (575).

The spelling of 190385 in words is "one hundred ninety thousand, three hundred eighty-five".