190386609 has 16 divisors (see below), whose sum is σ = 296035200. Its totient is φ = 108791760.

The previous prime is 190386541. The next prime is 190386611. The reversal of 190386609 is 906683091.

It is not a de Polignac number, because 190386609 - 2¹⁵ = 190353841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190386629) 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 15 ways as a sum of consecutive naturals, for example, 91482 + ... + 93539.

It is an arithmetic number, because the mean of its divisors is an integer number (18502200).

Almost surely, 2^190386609 is an apocalyptic number.

It is an amenable number.

190386609 is a deficient number, since it is larger than the sum of its proper divisors (105648591).

190386609 is an equidigital number, since it uses as much as digits as its factorization.

190386609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185045 (or 185031 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 190386609 is about 13798.0654078751. The cubic root of 190386609 is about 575.2793692218.

The spelling of 190386609 in words is "one hundred ninety million, three hundred eighty-six thousand, six hundred nine".