190649667 has 16 divisors (see below), whose sum is σ = 288162560. Its totient is φ = 111147552.

The previous prime is 190649663. The next prime is 190649677. The reversal of 190649667 is 766946091.

190649667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190649667 - 2² = 190649663 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190649663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127903 + ... + 129384.

It is an arithmetic number, because the mean of its divisors is an integer number (18010160).

Almost surely, 2^190649667 is an apocalyptic number.

190649667 is a deficient number, since it is larger than the sum of its proper divisors (97512893).

190649667 is a wasteful number, since it uses less digits than its factorization.

190649667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257322.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 190649667 is about 13807.5945406867. The cubic root of 190649667 is about 575.5442026151.

The spelling of 190649667 in words is "one hundred ninety million, six hundred forty-nine thousand, six hundred sixty-seven".