190396417 has 4 divisors (see below), whose sum is σ = 190571076. Its totient is φ = 190221760.

The previous prime is 190396391. The next prime is 190396463. The reversal of 190396417 is 714693091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 714693091 = 7 ⋅102099013.

It can be written as a sum of positive squares in 2 ways, for example, as 38638656 + 151757761 = 6216^2 + 12319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190396417 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190396417.

It is not an unprimeable number, because it can be changed into a prime (190391417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85684 + ... + 87877.

It is an arithmetic number, because the mean of its divisors is an integer number (47642769).

Almost surely, 2^190396417 is an apocalyptic number.

It is an amenable number.

190396417 is a deficient number, since it is larger than the sum of its proper divisors (174659).

190396417 is a wasteful number, since it uses less digits than its factorization.

190396417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174658.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 190396417 is about 13798.4208154412. The cubic root of 190396417 is about 575.2892477932.

The spelling of 190396417 in words is "one hundred ninety million, three hundred ninety-six thousand, four hundred seventeen".