1930193 has 8 divisors (see below), whose sum is σ = 1981128. Its totient is φ = 1880064.

The previous prime is 1930177. The next prime is 1930199. The reversal of 1930193 is 3910391.

It can be written as a sum of positive squares in 4 ways, for example, as 208849 + 1721344 = 457^2 + 1312^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1930193 - 2⁴ = 1930177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1930199) 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 7 ways as a sum of consecutive naturals, for example, 9905 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (247641).

2^1930193 is an apocalyptic number.

It is an amenable number.

1930193 is a deficient number, since it is larger than the sum of its proper divisors (50935).

1930193 is a wasteful number, since it uses less digits than its factorization.

1930193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1930193 is about 1389.3138594285. The cubic root of 1930193 is about 124.5088567539.

The spelling of 1930193 in words is "one million, nine hundred thirty thousand, one hundred ninety-three".