190393850 has 12 divisors (see below), whose sum is σ = 354132654. Its totient is φ = 76157520.

The previous prime is 190393849. The next prime is 190393859. The reversal of 190393850 is 58393091.

It can be written as a sum of positive squares in 3 ways, for example, as 171060241 + 19333609 = 13079^2 + 4397^2 .

It is not an unprimeable number, because it can be changed into a prime (190393859) 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 5 ways as a sum of consecutive naturals, for example, 1903889 + ... + 1903988.

Almost surely, 2^190393850 is an apocalyptic number.

190393850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190393850 is a deficient number, since it is larger than the sum of its proper divisors (163738804).

190393850 is a wasteful number, since it uses less digits than its factorization.

190393850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807889 (or 3807884 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 190393850 is about 13798.3277972369. The cubic root of 190393850 is about 575.2866623557.

The spelling of 190393850 in words is "one hundred ninety million, three hundred ninety-three thousand, eight hundred fifty".