190440173 has 16 divisors (see below), whose sum is σ = 249930240. Its totient is φ = 140583600.

The previous prime is 190440169. The next prime is 190440181. The reversal of 190440173 is 371044091.

It is a cyclic number.

It is not a de Polignac number, because 190440173 - 2² = 190440169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190440373) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63623 + ... + 66548.

It is an arithmetic number, because the mean of its divisors is an integer number (15620640).

Almost surely, 2^190440173 is an apocalyptic number.

It is an amenable number.

190440173 is a deficient number, since it is larger than the sum of its proper divisors (59490067).

190440173 is a wasteful number, since it uses less digits than its factorization.

190440173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130208.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 190440173 is about 13800.0062681145. The cubic root of 190440173 is about 575.3333144983. Note that the first 4 decimals are identical.

The spelling of 190440173 in words is "one hundred ninety million, four hundred forty thousand, one hundred seventy-three".