191022442 has 16 divisors (see below), whose sum is σ = 308943432. Its totient is φ = 88058880.

The previous prime is 191022439. The next prime is 191022451. The reversal of 191022442 is 244220191.

191022442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 66275881 + 124746561 = 8141^2 + 11169^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20442 + ... + 28282.

Almost surely, 2^191022442 is an apocalyptic number.

191022442 is a deficient number, since it is larger than the sum of its proper divisors (117920990).

191022442 is a wasteful number, since it uses less digits than its factorization.

191022442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8793.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 191022442 is about 13821.0868603015. The cubic root of 191022442 is about 575.9190766105.

The spelling of 191022442 in words is "one hundred ninety-one million, twenty-two thousand, four hundred forty-two".