190305012 has 24 divisors (see below), whose sum is σ = 444782016. Its totient is φ = 63329728.

The previous prime is 190304981. The next prime is 190305041. The reversal of 190305012 is 210503091.

It is a self number, because there is not a number n which added to its sum of digits gives 190305012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5448 + ... + 20255.

It is an arithmetic number, because the mean of its divisors is an integer number (18532584).

Almost surely, 2^190305012 is an apocalyptic number.

190305012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190305012 is an abundant number, since it is smaller than the sum of its proper divisors (254477004).

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

190305012 is a wasteful number, since it uses less digits than its factorization.

190305012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26327 (or 26325 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 190305012 is about 13795.1082634389. The cubic root of 190305012 is about 575.1971719520.

It can be divided in two parts, 19030 and 5012, that added together give a palindrome (24042).

The spelling of 190305012 in words is "one hundred ninety million, three hundred five thousand, twelve".