190381882 has 4 divisors (see below), whose sum is σ = 285572826. Its totient is φ = 95190940.

The previous prime is 190381871. The next prime is 190381927. The reversal of 190381882 is 288183091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 288183091 = 7 ⋅41169013.

It can be written as a sum of positive squares in only one way, i.e., 141395881 + 48986001 = 11891^2 + 6999^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47595469 + ... + 47595472.

Almost surely, 2^190381882 is an apocalyptic number.

190381882 is a deficient number, since it is larger than the sum of its proper divisors (95190944).

190381882 is an equidigital number, since it uses as much as digits as its factorization.

190381882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95190943.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 190381882 is about 13797.8941146829. The cubic root of 190381882 is about 575.2746080884.

The spelling of 190381882 in words is "one hundred ninety million, three hundred eighty-one thousand, eight hundred eighty-two".