190028172 has 24 divisors (see below), whose sum is σ = 448383600. Its totient is φ = 62630656.

The previous prime is 190028129. The next prime is 190028173. The reversal of 190028172 is 271820091.

190028172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×190028172³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (190028173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87897 + ... + 90032.

It is an arithmetic number, because the mean of its divisors is an integer number (18682650).

Almost surely, 2^190028172 is an apocalyptic number.

190028172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190028172 is an abundant number, since it is smaller than the sum of its proper divisors (258355428).

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

190028172 is a wasteful number, since it uses less digits than its factorization.

190028172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178025 (or 178023 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 190028172 is about 13785.0706200585. The cubic root of 190028172 is about 574.9181201619.

The spelling of 190028172 in words is "one hundred ninety million, twenty-eight thousand, one hundred seventy-two".