190849649 has 4 divisors (see below), whose sum is σ = 191058240. Its totient is φ = 190641060.

The previous prime is 190849643. The next prime is 190849669. The reversal of 190849649 is 946948091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190849649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190849597 and 190849606.

It is not an unprimeable number, because it can be changed into a prime (190849643) 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 3 ways as a sum of consecutive naturals, for example, 102917 + ... + 104754.

It is an arithmetic number, because the mean of its divisors is an integer number (47764560).

Almost surely, 2^190849649 is an apocalyptic number.

It is an amenable number.

190849649 is a deficient number, since it is larger than the sum of its proper divisors (208591).

190849649 is an equidigital number, since it uses as much as digits as its factorization.

190849649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208590.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 190849649 is about 13814.8343819244. The cubic root of 190849649 is about 575.7453713553.

The spelling of 190849649 in words is "one hundred ninety million, eight hundred forty-nine thousand, six hundred forty-nine".