190768308 has 12 divisors (see below), whose sum is σ = 445126080. Its totient is φ = 63589432.

The previous prime is 190768307. The next prime is 190768309. The reversal of 190768308 is 803867091.

It is an interprime number because it is at equal distance from previous prime (190768307) and next prime (190768309).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 190768308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190768307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7948668 + ... + 7948691.

It is an arithmetic number, because the mean of its divisors is an integer number (37093840).

Almost surely, 2^190768308 is an apocalyptic number.

It is an amenable number.

190768308 is an abundant number, since it is smaller than the sum of its proper divisors (254357772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190768308 is a wasteful number, since it uses less digits than its factorization.

190768308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897366 (or 15897364 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 190768308 is about 13811.8900951318. The cubic root of 190768308 is about 575.6635646218.

The spelling of 190768308 in words is "one hundred ninety million, seven hundred sixty-eight thousand, three hundred eight".