190128810 has 32 divisors (see below), whose sum is σ = 476150400. Its totient is φ = 48496448.

The previous prime is 190128793. The next prime is 190128817. The reversal of 190128810 is 18821091.

190128810 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190128810² = 72297928784032200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (190128817) 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 15 ways as a sum of consecutive naturals, for example, 137085 + ... + 138464.

It is an arithmetic number, because the mean of its divisors is an integer number (14879700).

Almost surely, 2^190128810 is an apocalyptic number.

190128810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190128810 is an abundant number, since it is smaller than the sum of its proper divisors (286021590).

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

190128810 is a wasteful number, since it uses less digits than its factorization.

190128810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275582.

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 190128810 is about 13788.7203902320. The cubic root of 190128810 is about 575.0195935352.

The spelling of 190128810 in words is "one hundred ninety million, one hundred twenty-eight thousand, eight hundred ten".