190173568 has 64 divisors (see below), whose sum is σ = 425829600. Its totient is φ = 83939328.

The previous prime is 190173559. The next prime is 190173569. The reversal of 190173568 is 865371091.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 190173568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190173569) 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, 35788 + ... + 40756.

Almost surely, 2^190173568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190173568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212914800).

190173568 is an abundant number, since it is smaller than the sum of its proper divisors (235656032).

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

190173568 is a wasteful number, since it uses less digits than its factorization.

190173568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019 (or 5007 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 190173568 is about 13790.3432879679. The cubic root of 190173568 is about 575.0647115575.

The spelling of 190173568 in words is "one hundred ninety million, one hundred seventy-three thousand, five hundred sixty-eight".