190128612 has 24 divisors (see below), whose sum is σ = 469730016. Its totient is φ = 59648128.

The previous prime is 190128599. The next prime is 190128613. The reversal of 190128612 is 216821091.

It is a happy number.

It is a super-2 number, since 2×190128612² = 72297778202093088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 190128612.

It is not an unprimeable number, because it can be changed into a prime (190128613) 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 7 ways as a sum of consecutive naturals, for example, 465798 + ... + 466205.

It is an arithmetic number, because the mean of its divisors is an integer number (19572084).

Almost surely, 2^190128612 is an apocalyptic number.

190128612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190128612 is an abundant number, since it is smaller than the sum of its proper divisors (279601404).

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

190128612 is a wasteful number, since it uses less digits than its factorization.

190128612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932027 (or 932025 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 190128612 is about 13788.7132104486. The cubic root of 190128612 is about 575.0193939268.

The spelling of 190128612 in words is "one hundred ninety million, one hundred twenty-eight thousand, six hundred twelve".